"Maarten Lankhorst" <[EMAIL PROTECTED]> wrote:
Seems native directsound keeps itself loaded by calling LoadLibrary when
attaching. A simple testcase I wrote confirms that at least for xp, by
not crashing.
After seeing this, I decided to write my own test, and can confirm now that this
patch looks correct: after a successful LoadLibrary("dsound.dll") FreeLibrary
needs to be called 2 times before it starts to return FALSE.
Just for fun I tested other dlls as well (GetModuleHandle returns 0 for all of
them
before the LoadLibrary call):
user32 requires 4 FreeLibrary calls after LoadLibrary, dinput - 1, mfc42 - 1,
advapi32 - 1, comctl32 - 1.
I'm attaching the program I used for testing.
+ GetModuleFileNameW(hInstDLL, modname,
sizeof(modname)/sizeof(*modname));
+ LoadLibraryW(modname);
Probably simple LoadLibrary("dsound.dll") should be enough.
--
Dmitry.
#include <stdio.h>
#include <windows.h>
int main(int argc, char *argv[])
{
LONG ref_count;
HANDLE hLib;
if(argc != 2)
{
printf("Syntax: loaddll.exe library.dll\n");
return -1;
}
hLib = GetModuleHandle(argv[1]);
printf("existing module %s handle is %p\n", argv[1], hLib);
printf("Loading %s...", argv[1]);
hLib = LoadLibrary(argv[1]);
if (hLib)
{
printf("\nLibrary loaded successfully. hLib = %p\n", hLib);
ref_count = 0;
while (FreeLibrary(hLib)) ref_count++;
printf("ref count = %d\n", ref_count);
}
else
printf("\nLoadLibrary() failed. Error %u\n", GetLastError());
return 0;
}
