openfilename打开文件对话框的使用
因为没设置nMaxFile，一直不出现对话框char szFileName={0};
OPENFILENAME openFileName = {0};
openFileName.lStructSize = sizeof(OPENFILENAME);
openFileName.nMaxFile = MAX_PATH;//这个必须设置，不设置的话不会出现打开文件对话框
openFileName.lpstrFilter = "文本文件(*.txt)\0*.txt\0所有文件(*.*)\0*.*\0\0";
openFileName.lpstrFile = szFileName;
openFileName.nFilterIndex = 1;
openFileName.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
if (::GetOpenFileName(&openFileName))
{
::MessageBoxA(hwndDlg, openFileName.lpstrFile, "", MB_OK);
}
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