windows 在旧式 main() 的参数中分解 WinMain 的 cmdLine
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Breaking down WinMain's cmdLine in old style main()'s arguments
提问by uu.
I want to convert WinMain's cmdLineargument to argcand argvso I can use the argument parsing function I wrote for console applications.
我想将WinMain的cmdLine参数转换为argc，argv所以我可以使用我为控制台应用程序编写的参数解析函数。
This would be trivial except that I want to support "quotes" too. For example:
除了我也想支持“引用”之外，这将是微不足道的。例如：
test.exe test1 test2 "testing testing"
test.exe test1 test2 "testing testing"
should be
应该
argv[0] = "test.exe"; argv[1] = "test1"; argv[2] = "test2"; argv[3] = "testing testing";
I realize that cmdLine doesn't have the program name (the argv[0]); this doesn't matter I can use a dummy value.
我意识到 cmdLine 没有程序名称（argv[0]）；这没关系我可以使用虚拟值。
I was thinking of doing it with a regex, (("[^"]+")\s+)|(([^\s]+)\s*)I'm not sure how well it would work though.. Probably not very well? Is there any function to do that in the windows api? Thanks
我想用正则表达式来做，(("[^"]+")\s+)|(([^\s]+)\s*)但我不确定它的效果如何..可能不是很好？windows api 中是否有任何功能可以做到这一点？谢谢
采纳答案by sean e
CommandLineToArgvWlooks like it would be helpful here.
CommandLineToArgvW看起来在这里会有帮助。
回答by Denis K
If you are using Microsoft compiler, there are public symbols __argc, __argvand __wargvdefined in stdlib.h. This also applies to MinGW that uses Microsoft runtime libraries.
如果您使用的是 Microsoft 编译器，则有公共符号__argc，__argv并__wargv在stdlib.h. 这也适用于使用 Microsoft 运行时库的 MinGW。
回答by Tomas Tintera
Based on Denis K response
基于 Denis K 响应
See: https://msdn.microsoft.com/library/dn727674.aspx
请参阅：https: //msdn.microsoft.com/library/dn727674.aspx
This adds Windows specific entrypoint to clasic startpoint of your app:
这将特定于 Windows 的入口点添加到您的应用程序的经典起点：
int __stdcall WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, char*, int nShowCmd)
{
return main(__argc, __argv);
}
回答by user3757954
If you want plain int argc, char** argv arguments you have to do it on your own.
如果你想要普通的 int argc, char** argv 参数，你必须自己做。
void fetchCmdArgs(int* argc, char*** argv) {
// init results
*argc = 0;
// prepare extraction
char* winCmd = GetCommandLine();
int index = 0;
bool newOption = true;
// use static so converted command line can be
// accessed from outside this function
static vector<char*> argVector;
// walk over the command line and convert it to argv
while(winCmd[index] != 0){
if (winCmd[index] == ' ') {
// terminate option string
winCmd[index] = 0;
newOption = true;
} else {
if(newOption){
argVector.push_back(&winCmd[index]);
(*argc)++;
}
newOption = false;
}
index++;
}
// elements inside the vector are guaranteed to be continous
*argv = &argVector[0];
}
// usage
int APIENTRY WinMain(...) {
int argc = 0;
char** argv;
fetchCmdArgs(&argc, &argv);
}
