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<a href="#func-members">函数</a> </div>
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<div class="title">base.c 文件参考</div> </div>
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<div class="contents">
<div class="textblock"><code>#include "<a class="el" href="a03629_source.html">precomp.h</a>"</code><br />
<code>#include <ntddbeep.h></code><br />
</div>
<p><a href="a00608_source.html">浏览源代码.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
函数</h2></td></tr>
<tr class="memitem:a9174085945bf93cc61fef7e307c22901"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00608.html#a9174085945bf93cc61fef7e307c22901">RtlLoadStringOrError</a> (<a class="el" href="a03608.html#afd1a0e78d1f88954d93e48ab3821781f">UINT</a> wID, LPWSTR lpBuffer, int cchBufferMax, WORD wLangId)</td></tr>
<tr class="separator:a9174085945bf93cc61fef7e307c22901"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c96372198152be76c02728ab8e49dce"><td class="memItemLeft" align="right" valign="top">VOID </td><td class="memItemRight" valign="bottom"><a class="el" href="a00608.html#a6c96372198152be76c02728ab8e49dce">UserSleep</a> (<a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> dwMilliseconds)</td></tr>
<tr class="separator:a6c96372198152be76c02728ab8e49dce"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af5893e53f677c0f2acc765c8b47fa12a"><td class="memItemLeft" align="right" valign="top">BOOL </td><td class="memItemRight" valign="bottom"><a class="el" href="a00608.html#af5893e53f677c0f2acc765c8b47fa12a">UserBeep</a> (<a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> dwFreq, <a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> dwDuration)</td></tr>
<tr class="separator:af5893e53f677c0f2acc765c8b47fa12a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa0553738b3b03816a062ca25b5c3ad4e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00608.html#aa0553738b3b03816a062ca25b5c3ad4e">UserMulDiv</a> (int nNumber, int nNumerator, int nDenominator)</td></tr>
<tr class="separator:aa0553738b3b03816a062ca25b5c3ad4e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2f03d318ac2c5bd1f77147cebddfaf75"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00608.html#a2f03d318ac2c5bd1f77147cebddfaf75">RtlInitUnicodeStringOrId</a> (PUNICODE_STRING pstrName, LPWSTR lpstrName)</td></tr>
<tr class="separator:a2f03d318ac2c5bd1f77147cebddfaf75"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">函数说明</h2>
<a id="a2f03d318ac2c5bd1f77147cebddfaf75"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2f03d318ac2c5bd1f77147cebddfaf75">◆ </a></span>RtlInitUnicodeStringOrId()</h2>
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<td class="memname">void RtlInitUnicodeStringOrId </td>
<td>(</td>
<td class="paramtype">PUNICODE_STRING </td>
<td class="paramname"><em>pstrName</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">LPWSTR </td>
<td class="paramname"><em>lpstrName</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<p class="definition">在文件 <a class="el" href="a00608_source.html">base.c</a> 第 <a class="el" href="a00608_source.html#l00310">310</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> {</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (HIWORD(lpstrName)) {</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  RtlInitUnicodeString(pstrName, lpstrName);</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  pstrName->Length = pstrName->MaximumLength = 0;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  pstrName->Buffer = lpstrName;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> }</div>
</div><!-- fragment -->
<p class="reference">被这些函数引用 <a class="el" href="a00797_source.html#l00248">_GetSystemMenu()</a>, <a class="el" href="a00797_source.html#l00028">GetSysMenuHandle()</a>, <a class="el" href="a00719_source.html#l00899">UpdateSystemCursorsFromRegistry()</a>, <a class="el" href="a00719_source.html#l00955">UpdateSystemIconsFromRegistry()</a>, <a class="el" href="a00635_source.html#l00031">xxxCreateWindowExWOW()</a>, <a class="el" href="a00761_source.html#l00095">xxxSetDialogSystemMenu()</a> , 以及 <a class="el" href="a00758_source.html#l00284">xxxTranslateAccelerator()</a>.</p>
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<a id="a9174085945bf93cc61fef7e307c22901"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9174085945bf93cc61fef7e307c22901">◆ </a></span>RtlLoadStringOrError()</h2>
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<td class="memname">int RtlLoadStringOrError </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a03608.html#afd1a0e78d1f88954d93e48ab3821781f">UINT</a> </td>
<td class="paramname"><em>wID</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">LPWSTR </td>
<td class="paramname"><em>lpBuffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>cchBufferMax</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">WORD </td>
<td class="paramname"><em>wLangId</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p class="definition">在文件 <a class="el" href="a00608_source.html">base.c</a> 第 <a class="el" href="a00608_source.html#l00030">30</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  PMESSAGE_RESOURCE_ENTRY MessageEntry;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">int</span> cch;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  NTSTATUS Status;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * Make sure the parms are valid.</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">if</span> (!lpBuffer || (cchBufferMax-- == 0))</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  cch = 0;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  Status = RtlFindMessage((PVOID)<a class="code" href="a03257.html#a4ae1966258068576cf2be4cc7356924b">hModuleWin</a>, (ULONG)RT_MESSAGETABLE,</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  wLangId, wID, &MessageEntry);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (NT_SUCCESS(Status)) {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * Copy out the message. If the whole thing can be copied,</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * copy two fewer chars so the crlf in the message will be</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * stripped out.</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  cch = wcslen((PWCHAR)MessageEntry->Text) - 2;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">if</span> (cch > cchBufferMax)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  cch = cchBufferMax;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  RtlCopyMemory(lpBuffer, (PWCHAR)MessageEntry->Text, cch * <span class="keyword">sizeof</span>(WCHAR));</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * Append a NULL.</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  lpBuffer[cch] = 0;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> cch;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a03257_source.html#l00324">hModuleWin</a>.</p>
</div>
</div>
<a id="af5893e53f677c0f2acc765c8b47fa12a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af5893e53f677c0f2acc765c8b47fa12a">◆ </a></span>UserBeep()</h2>
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<td class="memname">BOOL UserBeep </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> </td>
<td class="paramname"><em>dwFreq</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> </td>
<td class="paramname"><em>dwDuration</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p class="definition">在文件 <a class="el" href="a00608_source.html">base.c</a> 第 <a class="el" href="a00608_source.html#l00102">102</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  OBJECT_ATTRIBUTES ObjectAttributes;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  UNICODE_STRING NameString;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  NTSTATUS Status;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  IO_STATUS_BLOCK IoStatus;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  BEEP_SET_PARAMETERS BeepParameters;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  HANDLE hBeepDevice;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  LARGE_INTEGER TimeOut;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  CheckCritOut();</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  RtlInitUnicodeString( &NameString, DD_BEEP_DEVICE_NAME_U );</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  InitializeObjectAttributes( &ObjectAttributes,</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  &NameString,</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  0,</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  NULL,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  NULL</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  );</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  Status = ZwCreateFile( &hBeepDevice,</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  FILE_READ_DATA | FILE_WRITE_DATA,</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  &ObjectAttributes,</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  &IoStatus,</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  NULL,</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  0,</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  FILE_SHARE_READ | FILE_SHARE_WRITE,</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  FILE_OPEN_IF,</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  0,</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  (PVOID) NULL,</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  0L</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  );</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">if</span> (!NT_SUCCESS( Status )) {</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span>( FALSE );</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * 0,0 is a special case used to turn off a beep. Otherwise</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> * validate the dwFreq parameter to be in range.</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> ((dwFreq != 0 || dwDuration != 0) &&</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  (dwFreq < (ULONG)0x25 || dwFreq > (ULONG)0x7FFF)</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  ) {</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  Status = STATUS_INVALID_PARAMETER;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  BeepParameters.Frequency = dwFreq;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  BeepParameters.Duration = dwDuration;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  Status = ZwDeviceIoControlFile( hBeepDevice,</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  NULL,</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  NULL,</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  NULL,</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  &IoStatus,</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  IOCTL_BEEP_SET,</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  &BeepParameters,</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">sizeof</span>( BeepParameters ),</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  NULL,</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  0</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  );</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="a00899.html#ae451a2dc8791c420d7c956a63adc33ba">EnterCrit</a>();</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="a00599.html#a47af503ea2c52aebdffe8c960b8249fd">_UserSoundSentryWorker</a>(0);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <a class="code" href="a00899.html#ac2181d07596893ed44d18aa267ce4d23">LeaveCrit</a>();</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (!NT_SUCCESS( Status )) {</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  ZwClose( hBeepDevice );</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span>( FALSE );</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> * Beep device is asynchronous, so sleep for duration</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> * to allow this beep to complete.</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (dwDuration != (<a class="code" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a>)-1 && (dwFreq != 0 || dwDuration != 0)) {</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  TimeOut.QuadPart = Int32x32To64( dwDuration, -10000 );</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  Status = KeDelayExecutionThread(UserMode, FALSE, &TimeOut);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">while</span> (Status == STATUS_ALERTED);</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  ZwClose( hBeepDevice );</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span>( TRUE );</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> }</div>
</div><!-- fragment -->
<p class="reference">引用了 <a class="el" href="a00599_source.html#l02424">_UserSoundSentryWorker()</a>, <a class="el" href="a00563_source.html#l00175">DWORD</a>, <a class="el" href="a00899.html#ae451a2dc8791c420d7c956a63adc33ba">EnterCrit()</a> , 以及 <a class="el" href="a00899.html#ac2181d07596893ed44d18aa267ce4d23">LeaveCrit()</a>.</p>
<p class="reference">被这些函数引用 <a class="el" href="a00854_source.html#l00128">DownSiren()</a>, <a class="el" href="a00854_source.html#l00035">HighBeep()</a>, <a class="el" href="a00854_source.html#l00079">KeyClick()</a>, <a class="el" href="a00854_source.html#l00057">LowBeep()</a>, <a class="el" href="a00809_source.html#l00747">QueueMouseEvent()</a>, <a class="el" href="a00854_source.html#l00101">UpSiren()</a> , 以及 <a class="el" href="a03605_source.html#l00027">xxxOldMessageBeep()</a>.</p>
</div>
</div>
<a id="aa0553738b3b03816a062ca25b5c3ad4e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa0553738b3b03816a062ca25b5c3ad4e">◆ </a></span>UserMulDiv()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int UserMulDiv </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nNumber</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nNumerator</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nDenominator</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p class="definition">在文件 <a class="el" href="a00608_source.html">base.c</a> 第 <a class="el" href="a00608_source.html#l00198">198</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> {</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  ULONG Divisor;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  LONG Negate;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  LARGE_INTEGER Product;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  ULONG Quotient;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  ULONG Remainder;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  LONG Result;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  </div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * If the denominator is zero, then return a value of minus one.</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">if</span> (nDenominator == 0) {</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> - 1;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment"> * Compute the 64-bit product of the multiplier and multiplicand</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment"> * values.</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  Product.QuadPart = Int32x32To64(nNumber, nNumerator);</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> * Compute the negation value and convert the numerator and the denominator</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * to positive values.</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  Negate = nDenominator ^ Product.HighPart;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span> (nDenominator < 0) {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  nDenominator = - nDenominator;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">if</span> (Product.HighPart < 0) {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  Product.LowPart = (ULONG)(- (LONG)Product.LowPart);</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span> (Product.LowPart != 0) {</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  Product.HighPart = ~Product.HighPart;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  Product.HighPart = - Product.HighPart;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  </div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * If there are any high order product bits, then the quotient has</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> * overflowed.</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  Divisor = (ULONG)nDenominator;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  Quotient = (ULONG)Product.LowPart;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  Remainder = (ULONG)Product.HighPart;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span> (Divisor <= Remainder) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> - 1;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  </div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"> * Divide the 64-bit product by the 32-bit divisor forming a 32-bit</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> * quotient and a 32-bit remainder.</span></div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="preprocessor">#ifdef _X86_</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  </div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  _asm {</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  mov edx,Remainder</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  mov eax,Quotient</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  div Divisor</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  mov Remainder,edx</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  mov Quotient,eax</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  }</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  </div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  Quotient = RtlEnlargedUnsignedDivide(*(PULARGE_INTEGER)&Product,</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  Divisor,</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  &Remainder);</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  </div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment"> * Round the result if the remainder is greater than or equal to one</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"> * half the divisor. If the rounded quotient is zero, then overflow</span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment"> * has occured.</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (Remainder >= ((Divisor + 1) >> 1)) {</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  Quotient += 1;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">if</span> (Quotient == 0) {</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">return</span> - 1;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  </div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">/*</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment"> * Compute the final signed result.</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  Result = (LONG)Quotient;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">if</span> (Negate >= 0) {</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">if</span> (Result >= 0) {</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> Result;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  </div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">return</span> - 1;</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  }</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  </div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">if</span> ((Result >= 0) || ((Result < 0) && (Quotient == 0x80000000))) {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">return</span> - Result;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  </div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">return</span> - 1;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  }</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  }</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> }</div>
</div><!-- fragment -->
<p class="reference">被这些函数引用 <a class="el" href="a00833_source.html#l00771">CalcSBStuff2()</a>, <a class="el" href="a00716_source.html#l00658">CreateFontFromWinIni()</a>, <a class="el" href="a00821_source.html#l00631">FastGetProfileIntFromID()</a>, <a class="el" href="a00833_source.html#l01213">SBPosFromPx()</a> , 以及 <a class="el" href="a00827_source.html#l00535">SetWindowMetricInt()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6c96372198152be76c02728ab8e49dce">◆ </a></span>UserSleep()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">VOID UserSleep </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a> </td>
<td class="paramname"><em>dwMilliseconds</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p class="definition">在文件 <a class="el" href="a00608_source.html">base.c</a> 第 <a class="el" href="a00608_source.html#l00083">83</a> 行定义.</p>
<div class="fragment"><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  LARGE_INTEGER TimeOut;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  TimeOut.QuadPart = Int32x32To64( dwMilliseconds, -10000 );</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  KeDelayExecutionThread(UserMode, FALSE, &TimeOut);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div>
</div><!-- fragment -->
<p class="reference">被这些函数引用 <a class="el" href="a00854_source.html#l00147">DoBeep()</a>, <a class="el" href="a00689_source.html#l01097">UserChangeDisplaySettings()</a> , 以及 <a class="el" href="a00752_source.html#l00451">xxxAnimateCaption()</a>.</p>
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</div><!-- doc-content -->
<div class="ttc" id="aa00899_html_ae451a2dc8791c420d7c956a63adc33ba"><div class="ttname"><a href="a00899.html#ae451a2dc8791c420d7c956a63adc33ba">EnterCrit</a></div><div class="ttdeci">VOID EnterCrit(VOID)</div></div>
<div class="ttc" id="aa00599_html_a47af503ea2c52aebdffe8c960b8249fd"><div class="ttname"><a href="a00599.html#a47af503ea2c52aebdffe8c960b8249fd">_UserSoundSentryWorker</a></div><div class="ttdeci">BOOL _UserSoundSentryWorker(UINT uVideoMode)</div><div class="ttdef"><b>Definition:</b> <a href="a00599_source.html#l02424">access.c:2424</a></div></div>
<div class="ttc" id="aa00563_html_a074685e97e89d6aa2accdfcb82328699"><div class="ttname"><a href="a00563.html#a074685e97e89d6aa2accdfcb82328699">DWORD</a></div><div class="ttdeci">ddeml v[i< inst >][t< type >][hObj|pObj] Dump DDEML state information ddeml lists all ddeml instances for this process n ddeml t< type > lists all ddeml objects of the given type n n assumes link is first DWORD</div><div class="ttdef"><b>Definition:</b> <a href="a00563_source.html#l00175">exts.h:175</a></div></div>
<div class="ttc" id="aa00899_html_ac2181d07596893ed44d18aa267ce4d23"><div class="ttname"><a href="a00899.html#ac2181d07596893ed44d18aa267ce4d23">LeaveCrit</a></div><div class="ttdeci">VOID LeaveCrit(VOID)</div></div>
<div class="ttc" id="aa03257_html_a4ae1966258068576cf2be4cc7356924b"><div class="ttname"><a href="a03257.html#a4ae1966258068576cf2be4cc7356924b">hModuleWin</a></div><div class="ttdeci">HANDLE hModuleWin</div><div class="ttdef"><b>Definition:</b> <a href="a03257_source.html#l00324">kernel/globals.c:324</a></div></div>
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