有关error C2501: 'WINGDIAPI' : missing storage-class or type specifiers的错误

本文介绍在Windows 7 64位系统中使用VC6.0进行OpenGL开发时遇到的“error C2501: 'WINGDIAPI' : missing storage-class or type specifiers”错误。通过在文件开头加入预定义的包含语句解决了该问题。

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在w7 64为操作系统上,安装好VC 6.0,并且配置好OpenGL开发环境后,创建Win 32 Console Application项目之后,写了一个简单的程序,调试时提示错误“error C2501: 'WINGDIAPI' : missing storage-class or type specifiers”。解决办法是在文件前面加上预定义语句:

#ifdef _WIN32

#include <windows.h>

#endif

问题解决!

PS D:\HK\Git\Soft\Make\MakeTest\MakeTest> make gcc -g -Wall -c main.c -o build/main.o main.c: In function 'GetCurrentTimeString': main.c:16:14: error: passing argument 1 of 'wsprintfA' from incompatible pointer type [-Wincompatible-pointer-types] 16 | wsprintf(buffer,"%02d:%02d:%02d",st.wHour,st.wMinute,st.wSecond); | ^~~~~~ | | | LPWSTR {aka short unsigned int *} In file included from C:/Program Files/C/x86_64-14.2.0-release-win32-seh-ucrt-rt_v12-rev1/mingw64/x86_64-w64-mingw32/include/windows.h:72, from main.c:4: C:/Program Files/C/x86_64-14.2.0-release-win32-seh-ucrt-rt_v12-rev1/mingw64/x86_64-w64-mingw32/include/winuser.h:170:36: note: expected 'LPSTR' {aka 'char *'} but argument is of type 'LPWSTR' {aka 'short unsigned int *'} 170 | WINUSERAPI int WINAPIV wsprintfA(LPSTR,LPCSTR,...); | ^~~~~ main.c: In function 'WndProc': main.c:36:31: error: passing argument 4 of 'TextOutA' from incompatible pointer type [-Wincompatible-pointer-types] 36 | TextOut(hdc,10,10,timeStr,wcslen(timeStr)); | ^~~~~~~ | | | WCHAR * {aka short unsigned int *} In file included from C:/Program Files/C/x86_64-14.2.0-release-win32-seh-ucrt-rt_v12-rev1/mingw64/x86_64-w64-mingw32/include/windows.h:71: C:/Program Files/C/x86_64-14.2.0-release-win32-seh-ucrt-rt_v12-rev1/mingw64/x86_64-w64-mingw32/include/wingdi.h:3458:64: note: expected 'LPCSTR' {aka 'const char *'} but argument is of type 'WCHAR *' {aka 'short unsigned int *'} 3458 | WINGDIAPI WINBOOL WINAPI TextOutA(HDC hdc,int x,int y,LPCSTR lpString,int c); | ~~~~~~~^~~~~~~~ make: *** [Makefile:50: main.o] Error 1
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03-15
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