Versions 1

[SteveD73]

Hi

Is it possible to get a programs version number from an exe?

All I want to do is display an exes version number.

Thanks

 

[Cagliostro]

read it from registry. If this information is absent in registry, there is no other standard way to know that. John Fill

ivfmd@mail.md

 

[DataJanitor]

If the version number is stored in a Version Resource you can get it from there. Here's a class I use to extract the current exe's version number from the resource:

First the ver.h header file:

//	Declarations for Version from Version Resource class
//	Written by Frank Solomon 2000
//
#ifndef __ver_h
#define __ver_h

#include <windows.h>

namespace fss {

	class	VersionResource {
		UINT	VLen;
		LPVOID	VBuf;
		char	VString[1024];
	public:
		VersionResource();
		const char *c_str() const;
	};

}	// namespace fss

#endif	//__ver_h

Then the ver.cpp implementation:

//	Definitions for Version from Version Resource class
//	Written by Frank Solomon 2000
//

#include "ver.h"

namespace fss {

	VersionResource::VersionResource() {
		HRSRC	hrV = FindResource(NULL,"#1",RT_VERSION);
		if(hrV == NULL) {
			throw;
		} else {
			HGLOBAL hgrV = LoadResource(NULL,hrV);
			if(hgrV == NULL) {
				throw;
			} else {
				LPVOID pV = LockResource(hgrV);
				if(VerQueryValue(pV,"\\StringFileInfo\\040904b0\\FileVersion",&VBuf,&VLen)) {
					if(VLen > 0 && VLen < 1024) {
						wsprintf(VString,&quot;%s&quot;,VBuf);
					} else {
						throw;
					}
				}
				FreeResource(hgrV);
			}
		}
	}

	const char *VersionResource::c_str() const {
		return (const char *)VString;
	}

}

Sorry that some of those lines may have wrapped funny. You'll need to add version.lib to your project settings under the linker options.

Also, you'll need a "uses" line in your code:

#include "ver.h"
using fss::VersionResource;
int main(int argc, const char *argv[]) {
   VersionResource	V;
   cout << &quot;Version is &quot; << V.c_str() << endl;
   return 0;
}

Of course, if your current executable doesn't have a version resource, it's not going to work. So, be sure to add one to your project and link it in.

Good luck,
Frank

 

[IonelBurtan]

Use GetFileVersionInfo/VerQueryValue API functions.

Hope this helps, s-)

Blessed is he who in the name of justice and goodwill, sheperds the weak through the valley of darkness...

http://www20.brinkster.com/ionelb