Function to automatically create DrawText in RECT - c++

Question

I am writing the WinAPI Application, and I tried to write a function, that would automate for me creating Rectangles for text input (with Font, BkMode, TextColor), that then is called by DrawContent function called by WM_PAINT. The text does not appear, after I call ELW::AddTextControl.
LRESULT CALLBACK ELW::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_PAINT:
{
ELW::DrawContent(hWnd, hInst, hdc);
}
break;
case WM_CLOSE:
{
DestroyWindow(hWnd);
UnregisterClass(CLASS_NAME, hInst);
}
break;
case WM_SYSCOMMAND:
{
if (wParam == SC_CLOSE);
break;
}
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
// Content drawing
void ELW::DrawContent(HWND hWnd, HINSTANCE hInst, HDC hdc)
{
PAINTSTRUCT ps;
hdc = BeginPaint(hWnd, &ps);
RECT testowyRectangle = { 0, 1 , 20 , 30 };
FillRect(hdc, &ps.rcPaint, (HBRUSH)(COLOR_GRAYTEXT + 1));
ELW::AddTextControl("Testowy test", 80, 80, 100, 100, CUSTOM_COLOR_YELLOW_COLORREF, 10, "Euroscope", hdc);
EndPaint(hWnd, &ps);
};
void ELW::AddTextControl(const char* text, int xPos, int yPos, int xSize, int ySize, COLORREF rgb, int fontSize, const char* fontName, HDC hdc)
{
RECT TextRectangle = { xPos, yPos, ( xPos + xSize ) , ( yPos + ySize ) }; // Left, Top, Right, Bottom
if (rgb == NULL)
rgb = RGB(0, 0, 0);
if (fontSize == NULL)
fontSize = 10;
if (fontName == NULL)
fontName = "Euroscope";
HFONT hFont = CreateFont(fontSize, 8, 0, 0, 600, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_OUTLINE_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, VARIABLE_PITCH, TEXT(fontName));
SelectObject(hdc, hFont);
SetBkMode(hdc, TRANSPARENT);
SetTextColor(hdc, rgb);
DrawText(hdc, TEXT(text), strlen(text), &TextRectangle, DT_CENTER | DT_NOCLIP);
}

Answer 1

Found an error:
strlen(text)
should be
strlen(TEXT(text))