关于openfilename,不显示对话框

[upc_xiaowei]

open菜单项的处理；
case IDM_OPEN:
char szFileName[MAX_PATH],szTitleName[MAX_PATH];

OPENFILENAME ofn;
ofn.lStructSize=sizeof(OPENFILENAME);
ofn.hwndOwner=hWnd;
ofn.lpstrFilter="Text Files(*.txt)\0*.txt\0\0";
ofn.nMaxFile=MAX_PATH;
ofn.nMaxFileTitle=MAX_PATH;
ofn.lpstrDefExt="txt";
ofn.lpstrFile=szFileName;
ofn.lpstrFileTitle=szTitleName;
ofn.lpstrTitle="shit";
ofn.hInstance=NULL;
ofn.lpstrCustomFilter=NULL;
ofn.nMaxCustFilter=0;
ofn.nFilterIndex=0;
ofn.lpstrInitialDir=NULL;
ofn.Flags=OFN_HIDEREADONLY;
ofn.nFileOffset=0;
ofn.nFileExtension=0;
ofn.lCustData=0L;
ofn.lpfnHook=NULL;
ofn.lpTemplateName=NULL;

GetOpenFileName(&ofn);
break;
运行后，点击菜单，不出来对话框

[upc_xiaowei]

自己顶一下

[upc_xiaowei]

再顶一下，怎么没人呢，我看网上的例子就是这样啊，怎么不出来对话框？

[Eleven]

OPENFILENAME ofn;       // common dialog box structure
	TCHAR szFile[MAX_PATH] = {0};       // buffer for file name

	// Initialize OPENFILENAME
	ZeroMemory(&ofn, sizeof(ofn));
	ofn.lStructSize = sizeof(ofn);
	ofn.hwndOwner = GetSafeHwnd();
	ofn.lpstrFile = szFile;
	//
	// Set lpstrFile[0] to '\0' so that GetOpenFileName does not 
	// use the contents of szFile to initialize itself.
	//
	ofn.lpstrFile[0] = _T('\0');
	ofn.nMaxFile = sizeof(szFile);
	ofn.lpstrFilter = _T("All\0*.*\0Text\0*.TXT\0");
	ofn.nFilterIndex = 1;
	ofn.lpstrFileTitle = NULL;
	ofn.nMaxFileTitle = 0;
	ofn.lpstrInitialDir = NULL;
	ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;

	// Display the Open dialog box. 

	GetOpenFileName(&ofn);

[ColdMooon]

ofn.lpstrFile必须是有效的字串。也就是必须初始化。

[upc_xiaowei]

感谢visualeleven，太神奇了，居然行