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win32: attach to existing console (from commandprompt) if it exists instead of always creating a new one. still needs a bit more work

This commit is contained in:
zeromus 2009-05-29 08:13:06 +00:00
parent 29ac31a5a4
commit 7b4804b878
1 changed files with 37 additions and 10 deletions
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47
desmume/src/windows/console.cpp
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@ -31,7 +31,7 @@
///////////////////////////////////////////////////////////////// Console
#if !defined(PUBLIC_RELEASE) || defined(DEVELOPER)
#define BUFFER_SIZE 100
HANDLE hConsole;
HANDLE hConsole = NULL;
void printlog(const char *fmt, ...);
void OpenConsole()
@ -41,8 +41,41 @@ void OpenConsole()
SMALL_RECT srect;
char buf[256];
//dont do anything if we're already attached
if (hConsole) return;
AllocConsole();
//attach to an existing console (if we can; this is circuitous because AttachConsole wasnt added until XP)
//remember to abstract this late bound function notion if we end up having to do this anywhere else
bool attached = false;
HMODULE lib = LoadLibrary("kernel32.dll");
if(lib)
{
typedef BOOL (WINAPI *_TAttachConsole)(DWORD dwProcessId);
_TAttachConsole _AttachConsole = (_TAttachConsole)GetProcAddress(lib,"AttachConsole");
if(_AttachConsole)
{
if(_AttachConsole(-1))
attached = true;
}
FreeLibrary(lib);
}
//if we failed to attach, then alloc a new console
if(!attached)
{
AllocConsole();
}
hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
//redirect stdio
long lStdHandle = (long)hConsole;
int hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
FILE *fp = _fdopen( hConHandle, "w" );
*stdout = *fp;
//and stderr
*stderr = *fp;
memset(buf,0,256);
sprintf(buf,"%s OUTPUT", DESMUME_NAME_AND_VERSION);
SetConsoleTitle(TEXT(buf));
@ -54,19 +87,13 @@ void OpenConsole()
srect.Right = srect.Left + 99;
srect.Bottom = srect.Top + 64;
SetConsoleWindowInfo(GetStdHandle(STD_OUTPUT_HANDLE), TRUE, &srect);
hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleCP(GetACP());
SetConsoleOutputCP(GetACP());
if(attached) printlog("\n");
printlog("%s\n",DESMUME_NAME_AND_VERSION);
printlog("- compiled: %s %s\n\n",__DATE__,__TIME__);
//redirect stdio
long lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
int hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
FILE *fp = _fdopen( hConHandle, "w" );
*stdout = *fp;
//and stderr
*stderr = *fp;
}
void CloseConsole() {