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-rw-r--r--win/tclWinInit.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/win/tclWinInit.c b/win/tclWinInit.c
index d2ee7e1..c590865 100644
--- a/win/tclWinInit.c
+++ b/win/tclWinInit.c
@@ -76,6 +76,12 @@ typedef struct {
#define PROCESSOR_ARCHITECTURE_UNKNOWN 0xFFFF
#endif
+
+/*
+ * Windows version dependend functions
+ */
+TclWinProcs tclWinProcs;
+
/*
* The following arrays contain the human readable strings for the Windows
* platform and processor values.
@@ -132,6 +138,7 @@ TclpInitPlatform(void)
{
WSADATA wsaData;
WORD wVersionRequested = MAKEWORD(2, 2);
+ HMODULE handle;
tclPlatform = TCL_PLATFORM_WINDOWS;
@@ -150,6 +157,14 @@ TclpInitPlatform(void)
TclWinInit(GetModuleHandle(NULL));
#endif
+
+ /*
+ * Fill available functions depending on windows version
+ */
+ handle = GetModuleHandle(TEXT("KERNEL32"));
+ tclWinProcs.cancelSynchronousIo =
+ (BOOL (WINAPI *)(HANDLE)) GetProcAddress(handle,
+ "CancelSynchronousIo");
}
/*
@@ -537,16 +552,13 @@ TclpSetVariables(
TclGetProcessGlobalValue(&defaultLibraryDir), TCL_GLOBAL_ONLY);
if (!osInfoInitialized) {
- HANDLE handle = LoadLibraryW(L"NTDLL");
+ HMODULE handle = GetModuleHandle(TEXT("NTDLL"));
int(__stdcall *getversion)(void *) =
(int(__stdcall *)(void *)) GetProcAddress(handle, "RtlGetVersion");
osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
if (!getversion || getversion(&osInfo)) {
GetVersionExW(&osInfo);
}
- if (handle) {
- FreeLibrary(handle);
- }
osInfoInitialized = 1;
}
GetSystemInfo(&sys.info);