subject_43122.htm

一些关于vc的问答

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序号：43122 发表者：海底人 发表日期：2003-06-08 17:19:11
<br>主题：请教有关于"HBRUSH"类型
<br>内容：高手们:<BR>&nbsp;&nbsp;&nbsp;&nbsp;小弟是菜鸟,对VC封好的东西不了解.请教高手:<BR>&nbsp;&nbsp;&nbsp;&nbsp;HBRUSH是什么类型?在什么地方可用?如何初始化?
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<font color=red>答案被接受</font><br>回复者：shenjie 回复日期：2003-06-08 17:40:28
<br>内容：HBRUSH是GDI对象画刷的句柄，实际上是unsigned long类型，它标识了一个话刷资源，在绘图的时候要用到。用CreateSolidBrush或CreateHatchBrush等函数初始化，用完后要用DeleteObject释放<BR>例子：<BR>HDC hdc=GetDC(hWnd);<BR>HBRUSH hBrush=CreateSolidBrush(RGB(255,0,0));//创建红色刷子<BR>HBRUSH hOldBruch=(HBRUSH)SelectObject(hdc,hBrush);<BR>//绘图操作<BR>SelectObject(hdc,hOldBrush);<BR>DeleteObject(hBursh);<BR>ReleaseDC(hWnd,hdc);<BR>只有API变程用到HBRUSH，用MFC编程就可以用封装好的CBrush类。
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回复者：ninekwll 回复日期：2003-06-08 17:42:14
<br>内容：在msdn上有说明了！我引用一段，你看看！<BR><BR>Windows provides a variety of drawing tools to use in device contexts. It provides pens to draw lines, brushes to fill interiors, and fonts to draw text. MFC provides graphic-object classes equivalent to the drawing tools in Windows. The table below shows the available classes and the equivalent Windows graphics device interface (GDI) handle types.<BR><BR>MFC类&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Windows 句柄<BR>CPen&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HPEN&nbsp;&nbsp;<BR>CBrush&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HBRUSH <BR>CFont&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HFONT <BR>CBitmap&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; HBITMAP <BR>CPalette&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HPALETTE <BR>CRgn&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HRGN <BR><BR><BR>
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回复者：海底人 回复日期：2003-06-08 18:28:46
<br>内容：shenjie&nbsp;&nbsp;ninekwll<BR>&nbsp;&nbsp;&nbsp;&nbsp;谢谢你们:<BR>&nbsp;&nbsp;&nbsp;&nbsp; 你们说的都对,可是我只能选取一个正确答案.谢谢你们!下次就给ninekwll了.不好意思.<BR><BR><BR><BR>&nbsp;&nbsp; 总之谢谢大家!
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