Programming Forums > Application Development > C++

dc2000 · Jun 12th, 2005, 6:38 PM

Hi everyone:

It seems to be very easy but somehow I'm stuck in the middle of it. The GetModuleFileName(hModule, pFileName, nSz) returns NULL if hModule refers to console app (and probably 16bit app too). There's absolutely no way around it as I need to get file path from the window handle.

Any suggestions?

Ancient Dragon · Jun 12th, 2005, 6:52 PM

works ok for me (VC++ 6.0 compiler and XP). win32 api functions can't be called from 16-bit programs.

(Toggle Plain Text)

#include <windows.h>
#include <iostream>
using namespace std;

int main(int argc, char* argv[])
{
	char buf[_MAX_PATH];
	if( GetModuleFileName(NULL,buf,sizeof(buf)) )
		cout << buf << endl;
	else
		cout << "GetModuleFileName() failed" << endl;
	cin.ignore();
	return 0;
}

grumpy · Jun 12th, 2005, 8:09 PM

Why not look at argv[0]? If it is non-null, it is usually the name of your program.

dc2000 · Jun 13th, 2005, 2:38 AM

Sorry guys I didn't put it clear. I need to run GetModuleFileName() for HMODULE in another process. Basically what happens, I have HWND that I receive from WindowFromPoint(), then I get HMODULE off of it, and the goal is to get module path. I run it from GUI app on Windows XP. It works fine with exception of console windows and 16bit apps.

grumpy · Jun 13th, 2005, 4:14 AM

Quote:

Originally Posted by dc2000

Sorry guys I didn't put it clear. I need to run GetModuleFileName() for HMODULE in another process. Basically what happens, I have HWND that I receive from WindowFromPoint(), then I get HMODULE off of it, and the goal is to get module path. I run it from GUI app on Windows XP. It works fine with exception of console windows and 16bit apps.

With 16 bit apps, you're definitely out of luck. With console apps, you may be but I'm not 100% certain.

Under windows windows NT/2000/XP ....

16 bit apps run within the DOS emulator (an executable named NTVDM.EXE), and that does not provide a means of identifying the applications being run in the DOS virtual machine. At best, you will be able to get NTVDM.EXE as the module name.

My memory suggests console applications run within an environment set up by the command line processor (CMD.EXE), and that also does not provide a means of identifying individual applications running within it. I'm less certain on that, so you may wish to check further .......

Under windows 95/98/Me ..... the story may be different.

dc2000 · Jun 13th, 2005, 10:51 PM

Thanks! Doesn't sound simple though

Jun 12th, 2005, 6:38 PM	#1
dc2000 Newbie Join Date: Jun 2005 Location: Portland, OR Posts: 12 Rep Power: 0	GetModuleFileName() with console app? Hi everyone: It seems to be very easy but somehow I'm stuck in the middle of it. The GetModuleFileName(hModule, pFileName, nSz) returns NULL if hModule refers to console app (and probably 16bit app too). There's absolutely no way around it as I need to get file path from the window handle. Any suggestions?

Jun 12th, 2005, 6:52 PM	#2
Ancient Dragon PFO God In Training Join Date: Jun 2005 Location: near St Louis, MO. (USA) Posts: 599 Rep Power: 4	works ok for me (VC++ 6.0 compiler and XP). win32 api functions can't be called from 16-bit programs. (Toggle Plain Text) #include <windows.h> #include <iostream> using namespace std; int main(int argc, char* argv[]) { char buf[_MAX_PATH]; if( GetModuleFileName(NULL,buf,sizeof(buf)) ) cout << buf << endl; else cout << "GetModuleFileName() failed" << endl; cin.ignore(); return 0; } #include <windows.h> #include <iostream> using namespace std; int main(int argc, char* argv[]) { char buf[_MAX_PATH]; if( GetModuleFileName(NULL,buf,sizeof(buf)) ) cout << buf << endl; else cout << "GetModuleFileName() failed" << endl; cin.ignore(); return 0; }

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Jun 12th, 2005, 8:09 PM	#3
grumpy Programming Guru Join Date: Jun 2005 Location: Adelaide, South Australia Posts: 1,260 Rep Power: 5	Why not look at argv[0]? If it is non-null, it is usually the name of your program.

Jun 13th, 2005, 2:38 AM	#4
dc2000 Newbie Join Date: Jun 2005 Location: Portland, OR Posts: 12 Rep Power: 0	Sorry guys I didn't put it clear. I need to run GetModuleFileName() for HMODULE in another process. Basically what happens, I have HWND that I receive from WindowFromPoint(), then I get HMODULE off of it, and the goal is to get module path. I run it from GUI app on Windows XP. It works fine with exception of console windows and 16bit apps.

Jun 13th, 2005, 10:51 PM	#6
dc2000 Newbie Join Date: Jun 2005 Location: Portland, OR Posts: 12 Rep Power: 0	Thanks! Doesn't sound simple though

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Programming Forums > Application Development > C++

GetModuleFileName() with console app?