subject_53044.htm

vc

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序号：53044 发表者：sixth 发表日期：2003-09-16 22:22:53
<br>主题：对话框的问题
<br>内容：我想在一个对话框中按一个按钮后弹出子对话框，并可以在上面作图，我该怎么做呢？<BR>谢谢！
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回复者：shenjie 回复日期：2003-09-16 22:35:21
<br>内容：在响应该窗口的函数中添加:<BR>//////////////////<BR>CMyDialog dlg;<BR>dlg.DoModal();<BR>//////////////////<BR>CMyDialog派生自CDialog,你在其中加入绘图代码
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回复者：汪江涛 回复日期：2003-09-16 22:40:24
<br>内容：LRESULT CALLBACK DlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;switch (message)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;case WM_INITDIALOG:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return TRUE;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;case WM_COMMAND:<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;EndDialog(hDlg, LOWORD(wParam));<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return TRUE;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;return FALSE;<BR>}<BR>CreateDialog(hInst,MAKEINTRESOURCE(ID_DLG),hWndParent,(DLGPROC)DlgProc);
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回复者：sixth 回复日期：2003-09-16 22:43:05
<br>内容：我试了不行的哟，你帮我看一下撒，它就是没东西显示，谢谢<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;CDialog dlg(IDD_DIALOG_D,NULL);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dlg.DoModal();<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CPaintDC dc(this);<BR>&nbsp;&nbsp;&nbsp;&nbsp;CRect rect;<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;GetClientRect(&amp;rect);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.SelectStockObject(WHITE_BRUSH);<BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.Rectangle(rect.left+20,rect.top+70,rect.right-1,rect.bottom);<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.MoveTo(rect.right-1,rect.top+70);<BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.LineTo(rect.left+20,rect.top+70);<BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.LineTo(rect.left+20,rect.bottom);<BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.LineTo(rect.right-1,rect.bottom);<BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.LineTo(rect.right-1,rect.top+70);<BR><BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.MoveTo(rect.left+20,rect.bottom-25);<BR>&nbsp;&nbsp;&nbsp;&nbsp;dc.LineTo(rect.right-1,rect.bottom-25);
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回复者：david_zhao 回复日期：2003-09-17 08:35:37
<br>内容：你最好把画图的程序代码写到C***Dlg::OnPaint()函数里，然后再调用显示你的对话框,.试试看！
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回复者：sixth 回复日期：2003-09-17 10:36:12
<br>内容：&nbsp;&nbsp;CDialog dlg(IDD_DIALOG_D,NULL);<BR><BR>&nbsp;&nbsp; dlg.DoModal();<BR>&nbsp;&nbsp; C***Dlg::OnPaint();<BR> <BR> 我试了这样的，它还是只在主对话框显示，不在我新建的这个对话框显示。谢谢您！<BR>&nbsp;&nbsp;<BR>
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<font color=red>答案被接受</font><br>回复者：david_zhao 回复日期：2003-09-17 12:49:42
<br>内容：是把画图的程序代码写到你要显示的对话框的OnPaint()里，而不是<BR>在主对话框里！
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