// Includes
#define WIN32_LEAN_AND_MEAN
#define WINVER 0x0502
#include <windows.h>
#include <stdio.h>
#include <windowsx.h>
#include <string>
#include <cstdlib>
#include <iostream>
#include <gdiplus.h>
// Global Variables
HWND hWnd;
HINSTANCE hInstance;
ULONG_PTR gdiplusToken;
int count;
Style lk;
// Functions
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
void LoadStyle();
void UnloadStyle();
int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil) {
// GDI+
GdiplusStartupInput gdiplusStartupInput;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
// Normal Vars
HWND hwnd;
MSG messages;
WNDCLASSEX wincl;
// window structure to register
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure;
wincl.style = CS_DBLCLKS;
wincl.cbSize = sizeof (WNDCLASSEX);
// defaults
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL;
wincl.cbClsExtra = 0;
wincl.cbWndExtra = 0;
// background color
wincl.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
// register window class
if (!RegisterClassEx (&wincl))
return 0;
// Create window
hwnd = CreateWindowEx(0, szClassName, L"Test Transparent Static Main Window", WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_CLIPCHILDREN, 100, 100, WINDOW_WIDTH, WINDOW_HEIGHT, HWND_DESKTOP, NULL, hThisInstance, NULL);
ShowWindow (hwnd, nFunsterStil);
// Set globals
hWnd = hwnd;
hInstance = hThisInstance;
// Main window message loop
while (GetMessage (&messages, NULL, 0, 0)) {
TranslateMessage(&messages);
DispatchMessage(&messages);
}
return messages.wParam;
}
// Main Window Procedure
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
switch (message) {
case WM_CREATE: {
LoadStyle();
const int timerSpeed = 75;
SetTimer(hwnd, ID_TIMER, timerSpeed, NULL);
} break;
case WM_PAINT: {
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hwnd, &ps);
EndPaint(hwnd, &ps);
} break;
case WM_DESTROY: {
UnloadStyle();
GdiplusShutdown(gdiplusToken);
PostQuitMessage(0);
} break;
case WM_TIMER: {
// Start -----------------------------------------------------------------------------------------------------------------------------------
HDC hdc = GetDC(hWnd);
Graphics *g = new Graphics(hdc);
g->FillRectangle(lk.blackBrush, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
g->SetTextRenderingHint(TextRenderingHintAntiAlias);
// Draw Strings
g->DrawString(L"String1", -1, lk.font, PointF(0, 0), lk.textColor1);
g->DrawString(L"String2", -1, lk.font, PointF(0, 120), lk.textColor2);
// Done
ReleaseDC(hWnd, hdc);
delete hdc;
g->Flush();
delete g;
// -------------------------------------------------------------------------------------------------------------------------------------
} break;
default: {
return DefWindowProc (hwnd, message, wParam, lParam);
}
}
return 0;
}
void LoadStyle() {
lk.blackBrush = new SolidBrush(Color(25,10,10,10));
lk.penBorder = new Pen(Color(100,255,255,255), 3);
lk.fontFamily = new FontFamily(L"Times New Roman");
lk.font = new Font(lk.fontFamily, 32, FontStyleBold, UnitPixel);
lk.textColor1 = new SolidBrush(Color(100,100,100,100));
lk.textColor2 = new SolidBrush(Color(200,200,200,200));
}
void UnloadStyle() {
delete lk.blackBrush;
delete lk.penBorder;
delete lk.fontFamily;
delete lk.font;
delete lk.textColor1;
delete lk.textColor2;
}
I compiled this with wxDevC++, and it needs the GDI+ library and header includes for windowsWindows, to compile.
On a larger program I have had memory fluctuating from plus minus 4mbs4MBs. Not a lot, but questionable why is it doing that?
This is a short replication, itwhich fluctuates by .1mb1MB.
I'm wondering if there is a mistake, or is that normal? Other programs on my computer I seeexperience no fluctuation in its memory usage.
Also, I saved all the common used GDI+ tools so they did not need to be created every time. Good Is that good or bad?
Thanks.
// Includes
#define WIN32_LEAN_AND_MEAN
#define WINVER 0x0502
#include <windows.h>
#include <stdio.h>
#include <windowsx.h>
#include <string>
#include <cstdlib>
#include <iostream>
#include <gdiplus.h>
// Global Variables
HWND hWnd;
HINSTANCE hInstance;
ULONG_PTR gdiplusToken;
int count;
Style lk;
// Functions
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
void LoadStyle();
void UnloadStyle();
int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil) {
// GDI+
GdiplusStartupInput gdiplusStartupInput;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
// Normal Vars
HWND hwnd;
MSG messages;
WNDCLASSEX wincl;
// window structure to register
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure;
wincl.style = CS_DBLCLKS;
wincl.cbSize = sizeof (WNDCLASSEX);
// defaults
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL;
wincl.cbClsExtra = 0;
wincl.cbWndExtra = 0;
// background color
wincl.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
// register window class
if (!RegisterClassEx (&wincl))
return 0;
// Create window
hwnd = CreateWindowEx(0, szClassName, L"Test Transparent Static Main Window", WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | WS_CLIPCHILDREN, 100, 100, WINDOW_WIDTH, WINDOW_HEIGHT, HWND_DESKTOP, NULL, hThisInstance, NULL);
ShowWindow (hwnd, nFunsterStil);
// Set globals
hWnd = hwnd;
hInstance = hThisInstance;
// Main window message loop
while (GetMessage (&messages, NULL, 0, 0)) {
TranslateMessage(&messages);
DispatchMessage(&messages);
}
return messages.wParam;
}
// Main Window Procedure
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
switch (message) {
case WM_CREATE: {
LoadStyle();
const int timerSpeed = 75;
SetTimer(hwnd, ID_TIMER, timerSpeed, NULL);
} break;
case WM_PAINT: {
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hwnd, &ps);
EndPaint(hwnd, &ps);
} break;
case WM_DESTROY: {
UnloadStyle();
GdiplusShutdown(gdiplusToken);
PostQuitMessage(0);
} break;
case WM_TIMER: {
// Start -----------------------------------------------------------------------------------------------------------------------------------
HDC hdc = GetDC(hWnd);
Graphics *g = new Graphics(hdc);
g->FillRectangle(lk.blackBrush, 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
g->SetTextRenderingHint(TextRenderingHintAntiAlias);
// Draw Strings
g->DrawString(L"String1", -1, lk.font, PointF(0, 0), lk.textColor1);
g->DrawString(L"String2", -1, lk.font, PointF(0, 120), lk.textColor2);
// Done
ReleaseDC(hWnd, hdc);
delete hdc;
g->Flush();
delete g;
// -------------------------------------------------------------------------------------------------------------------------------------
} break;
default: {
return DefWindowProc (hwnd, message, wParam, lParam);
}
}
return 0;
}
void LoadStyle() {
lk.blackBrush = new SolidBrush(Color(25,10,10,10));
lk.penBorder = new Pen(Color(100,255,255,255), 3);
lk.fontFamily = new FontFamily(L"Times New Roman");
lk.font = new Font(lk.fontFamily, 32, FontStyleBold, UnitPixel);
lk.textColor1 = new SolidBrush(Color(100,100,100,100));
lk.textColor2 = new SolidBrush(Color(200,200,200,200));
}
void UnloadStyle() {
delete lk.blackBrush;
delete lk.penBorder;
delete lk.fontFamily;
delete lk.font;
delete lk.textColor1;
delete lk.textColor2;
}