subject_30022.htm

一些关于vc的问答

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序号：30022 发表者：陳章民 发表日期：2003-02-19 13:48:34
<br>主题：如何獲得.bmp的圖形尺寸
<br>内容：如何獲得.bmp的圖形尺寸<BR>CDC* CMap::LoadBitmap(char* _path)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;char* path=new char[255];<BR>&nbsp;&nbsp;&nbsp;&nbsp;strcpy(path,BmpPath);<BR>&nbsp;&nbsp;&nbsp;&nbsp;strcat(path,_path);<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;CDC* destdc;<BR>&nbsp;&nbsp;&nbsp;&nbsp;CBitmap* bitmap;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;destdc = new CDC;<BR>&nbsp;&nbsp;&nbsp;&nbsp;bitmap = new CBitmap;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;CClientDC dc(Window);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;destdc-&gt;CreateCompatibleDC(&amp;dc); <BR>&nbsp;&nbsp;&nbsp;&nbsp;bitmap-&gt;m_hObject = (HBITMAP)::LoadImage(NULL,path,IMAGE_BITMAP,0,0,LR_LOADFROMFILE);<BR>&nbsp;&nbsp;&nbsp;&nbsp;destdc-&gt;SelectObject(bitmap);<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;delete bitmap;<BR>&nbsp;&nbsp;&nbsp;&nbsp;delete[] path;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;return destdc;<BR>}
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<font color=red>答案被接受</font><br>回复者：tjhe 回复日期：2003-02-19 13:54:15
<br>内容：&nbsp;&nbsp;&nbsp;&nbsp;destdc-&gt;CreateCompatibleDC(&amp;dc); <BR>&nbsp;&nbsp;&nbsp;&nbsp;bitmap-&gt;m_hObject = (HBITMAP)::LoadImageNULL,path,IMAGE_BITMAP,0,0,LR_LOADFROMFILE);<BR>&nbsp;&nbsp;&nbsp;&nbsp;BITMAP bm;<BR>&nbsp;&nbsp;&nbsp;&nbsp;bitmap-&gt;GetBitmap(&amp;bm);<BR>&nbsp;&nbsp;&nbsp;&nbsp;//bm.bmWidth&nbsp;&nbsp; //宽度<BR>&nbsp;&nbsp;&nbsp;&nbsp;//bm.bmHeight&nbsp;&nbsp;//高度<BR>&nbsp;&nbsp;&nbsp;&nbsp;destdc-&gt;SelectObject(bitmap);<BR>
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