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SDL_SetWindowCaption() on Windows: try to use the unicode

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SetWindowText() if it exists in user32.dll, and fallback to converting
to the current codepage (instead of latin1) if not.

  Fixes Bugzilla #365.

--HG--
branch : SDL-1.2
This commit is contained in:
Ryan C. Gordon
2007-02-16 04:56:17 +00:00
parent c51512e418
commit 8a9a3f1522
1 changed files with 32 additions and 2 deletions
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34
src/video/wincommon/SDL_syswm.c
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@@ -207,6 +207,8 @@ void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask)
#endif /* DISABLE_ICON_SUPPORT */
}
typedef BOOL (WINAPI *PtrSetWindowTextW)(HWND hWnd, LPCWSTR lpString);
void WIN_SetWMCaption(_THIS, const char *title, const char *icon)
{
#ifdef _WIN32_WCE
@@ -215,8 +217,36 @@ void WIN_SetWMCaption(_THIS, const char *title, const char *icon)
SetWindowText(SDL_Window, lpszW);
SDL_free(lpszW);
#else
char *lpsz = SDL_iconv_utf8_latin1((char *)title);
SetWindowText(SDL_Window, lpsz);
/*
* Try loading SetWindowTextW from kernel32.dll first, and if it exists,
* pass the UCS-2 string to it. If it doesn't, use
* WideCharToMultiByte(CP_ACP) and hope that the codepage can support the
* string data in question. This lets us keep binary compatibility with
* Win95/98/ME but still use saner Unicode on NT-based Windows.
*/
static int tried_loading = 0;
static PtrSetWindowTextW swtw = NULL;
Uint16 *lpsz = SDL_iconv_utf8_ucs2(title);
if (!tried_loading) {
HMODULE dll = LoadLibrary("user32.dll");
if (dll != NULL) {
swtw = (PtrSetWindowTextW) GetProcAddress(dll, "SetWindowTextW");
if (swtw == NULL) {
FreeLibrary(dll);
}
}
tried_loading = 1;
}
if (swtw != NULL) {
swtw(SDL_Window, lpsz);
} else {
size_t len = WideCharToMultiByte(CP_ACP, 0, lpsz, -1, NULL, 0, NULL, NULL);
char *cvt = SDL_malloc(len + 1);
WideCharToMultiByte(CP_ACP, 0, lpsz, -1, cvt, len, NULL, NULL);
SetWindowText(SDL_Window, cvt);
SDL_free(cvt);
}
SDL_free(lpsz);
#endif
}