vc2020中c的文件打开方式

1、首先在文件浏览器中找到C文件，在文件名上点右键，选择“打开方式”。

2、其次在“推荐的程序”和“其他程序”中找有没有VCMicrosoft（R）DeveloperStudio，如果没找到，就用“浏览”去找VC的EXE文件。

3、然后选定工具后，一定记住在下面设成ON：始终使用选择的程序打开这种文件。

4、最后点击确定即可。

加上头文件#include <commdlg.h>

其格式如下

OPENFILENAME ofn

char path[MAX_PATH]

static TCHAR szFilter[] = TEXT ("Text Files (*.TXT)\0*.txt\0") \

TEXT ("ASCII Files (*.ASC)\0*.asc\0") \

TEXT ("All Files (*.*)\0*.*\0\0")

ofn.lStructSize = sizeof (OPENFILENAME)

ofn.hwndOwner = hwnd

ofn.hInstance = NULL

ofn.lpstrFilter = szFilter

ofn.lpstrCustomFilter = NULL

ofn.nMaxCustFilter = 0

ofn.nFilterIndex = 0

ofn.nMaxFile = MAX_PATH

ofn.nMaxFileTitle = MAX_PATH

ofn.lpstrInitialDir = NULL

ofn.lpstrTitle = NULL

ofn.Flags = 0 // Set in Open and Close functions

ofn.nFileOffset = 0

ofn.nFileExtension = 0

ofn.lpstrDefExt = TEXT ("txt")

ofn.lCustData = 0L

ofn.lpfnHook = NULL

ofn.lpTemplateName = NULL

ofn.hwndOwner = hwnd

ofn.lpstrFile = path

ofn.lpstrFileTitle = NULL

ofn.Flags = OFN_HIDEREADONLY | OFN_CREATEPROMPT

GetOpenFileName (&ofn) //打开文件对话框

GetSaveFileName(&ofn)//保存文件对话框

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