windows.h setpixel isnt working in project - c++

Question

I am writing some code to get acquainted with the windows API. I was able to get a window to open but when I tried to write a program to draw random pixels. I am using GCC with Vscode. here is the code:
#include <windows.h>
#include <time.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
void DrawPixels(HWND hwnd);
int WINAPI
WinMain (HINSTANCE hInstance, HINSTANCE hPrevInst, LPTSTR lpCmdLine, int nShowCmd) {
MSG msg;
WNDCLASSW wc = {0};
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpszClassName = L"Pixels";
wc.hInstance = hInstance;
wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
wc.lpfnWndProc = WndProc;
wc.hCursor = LoadCursor(0, IDC_ARROW);
RegisterClassW(&wc);
CreateWindowW(wc.lpszClassName, L"Pixels",
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
100, 100, 300, 250, NULL, NULL, hInstance, NULL);
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
srand(time(NULL));
return (int) msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg,
WPARAM wParam, LPARAM lParam) {
switch(msg) {
case WM_PAINT:
DrawPixels(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProcW(hwnd, msg, wParam, lParam);
}
void DrawPixels(HWND hwnd) {
PAINTSTRUCT ps;
RECT r;
GetClientRect(hwnd, &r);
if (r.bottom == 0) {
return;
}
HDC hdc = BeginPaint(hwnd, &ps);
for (int i=0; i<1000; i++) {
int x = rand() % r.right;
int y = rand() % r.bottom;
SetPixel(hdc, x, y, RGB(255, 0, 0));
}
EndPaint(hwnd, &ps);
}
Whenever I try to compile this I get the error main.o:main.cpp:(.text+0x224): undefined reference to `SetPixel#16'
I have tried changing the variables and the types but it isnt working.