Linking Kernel32.DLL

[lmsmi1]

I have a project that needs to be linked to Kernel32.dll. For some reason, even after I link libkernel32.a in "Build Options" < "Linker" it still gives me the same errors. Here's the project code:

Code

#include <windows.h>
#include <string>
#include "resource.h"

using namespace std;

LRESULT CALLBACK WinProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);

HINSTANCE   hInstance;
HWND        Label1;
HANDLE      Label1Handle;


int WINAPI WinMain(HINSTANCE hThisInstance, HINSTANCE hPrevInstance, PSTR lpCmdLine, int nCmdShow) {

	MSG			msg;
	WNDCLASS	wc;
	HWND		hwnd = NULL;
	hInstance       = hThisInstance;

	wc.cbClsExtra		= 0;
	wc.cbWndExtra		= 0;
	wc.hbrBackground	= CreateSolidBrush(RGB(241, 241, 241));
	wc.hCursor			= LoadCursor(NULL, IDC_ARROW);
    wc.hIcon            = LoadIcon(hInstance, MAKEINTRESOURCE(MAIN_ICON));
	wc.hInstance      	= hThisInstance;
	wc.lpfnWndProc		= WinProc;
	wc.lpszClassName	= "Window";
	wc.lpszMenuName		= NULL;
	wc.style			= CS_HREDRAW | CS_VREDRAW;

 	if (!RegisterClass(&wc)) {
		MessageBox(NULL, "Error registering class", "ERROR", MB_OK);
		return 0;
	}

	hwnd = CreateWindow("Window",
						"Window",
						WS_OVERLAPPEDWINDOW,
						CW_USEDEFAULT,
						CW_USEDEFAULT,
						640,
						400,
						NULL,
						NULL,
						hThisInstance,
						NULL);

	ShowWindow(hwnd, nCmdShow);
	UpdateWindow(hwnd);

	while (GetMessage(&msg, (HWND)NULL, 0, 0)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return msg.wParam;
}

LRESULT CALLBACK WinProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {

	switch (msg) {

        case WM_CREATE: {

        string LabelText1 = "Hello";

        Label1 = CreateWindowEx(0,
            "STATIC",
            "Some static text",
            WS_CHILD | WS_VISIBLE,
            25,
            125,
            150,
            20,
            hwnd,
            (HMENU)static_1,
            hInstance,
            0);

            SendDlgItemMessage(hwnd, static_1, WM_SETFONT, (WPARAM)CreateFont(12, 10, 0, 0, 500, 0, 0, 0, DEFAULT_CHARSET, 0, 0, 0, 0, TEXT("Terminal")), MAKELPARAM(TRUE, 0));

        } break;

        case WM_DESTROY: {
		    PostQuitMessage(0);
            return 0;
        } break;

        case WM_CLOSE: {
		    DestroyWindow(hwnd);
        } break;
    }

    return DefWindowProc(hwnd, msg, wParam, lParam);
}

Here's the project error list:

Code

..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `EnterCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `LeaveCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `EnterCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `LeaveCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `EnterCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `LeaveCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `LeaveCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `DeleteCriticalSection@4'|
..\..\MinGW\lib\libmingw32.a(tlsthrd.o):tlsthrd.c|| undefined reference to `InitializeCriticalSection@4'|
||=== Build finished: 9 errors, 0 warnings ===|

[stahta01]

You likely made a mistake; look at the full compiler log. See if something is wrong or missing.

http://wiki.codeblocks.org/index.php?title=FAQ-Compiling_%28errors%29#Q:_How_do_I_troubleshoot_a_compiler_problem.3F

FYI: In linking the order of the object file(s) and libraries matter.

Tim S.

[comsytec]

To me this obviously happens when when I forgot to rename c:\MinGW\lib to e.g. c:\MinGW\libX
This is while linker looks for startup files and libraries first in c:\MinGW\lib - some built in feature of the linker
I havent tried this on system where mingw is not installed

This is my simple but stupid method of quick fix

[MortenMacFly]

...why not start like this:
http://lmgtfy.com/?q=undefined+reference+to+LeaveCriticalSection
?