A class for dynamic icons in Windows

A class for dynamic icons in Windows



#include <windows.h>

Class Dynamicicon {
Public
Dynamicicon ();
~dynamicicon ();

Hicon Icon ();

Private

HDC memdc1_;
HDC memdc2_;

Hbitmap oldbmp_1;
Hbitmap oldbmp_2;
Hbitmap Iconbmp_;
Hbitmap Iconmaskbmp_;

Hbrush Hcirclebrush;
Hbrush Htranspbrush;
Hbrush hOldBrush;

HRGN Circle;

Hicon Icon_;

static int const iconwidth_;
static int const ICONHEIGHT_;
};

int const DYNAMICICON::ICONWIDTH_ = 16;
int const DYNAMICICON::ICONHEIGHT_ = 16;

Dynamicicon::D Ynamicicon () {
HDC hdc = GetDC (0);

memdc1_ = CreateCompatibleDC (HDC);
memdc2_ = CreateCompatibleDC (HDC);
Iconbmp_ = CreateCompatibleBitmap (HDC, Iconwidth_, Iconheight_);

Iconmaskbmp_ = CreateCompatibleBitmap (HDC, Iconwidth_, Iconheight_);
Oldbmp_1 = (hbitmap) SelectObject (memdc1_, (HBITMAP) iconbmp_);
oldbmp_2 = (hbitmap) SelectObject (memdc2_, (HBITMAP) iconmaskbmp_);

Prepare mask
Hbrush hbrush = CreateSolidBrush (RGB (255, 255, 255));
hOldBrush = (hbrush) SelectObject (memdc2_, hbrush);
Patblt (memdc2_, 0, 0, iconwidth_, Iconheight_, patcopy);
SelectObject (memdc2_, hOldBrush);
DeleteObject (Hbrush);

Draw circle on both bitmaps
Circle = createellipticrgn (0, 0, iconwidth_, iconheight_);

Hbrush = CreateSolidBrush (RGB (255, 0, 0));
Fillrgn (memdc1_, Circle, Hbrush);
DeleteObject (Hbrush);

Hbrush = CreateSolidBrush (RGB (0, 0, 0));
Fillrgn (memdc2_, Circle, Hbrush);
DeleteObject (Hbrush);
DeleteObject (circle);

SelectObject (memdc1_, (HBITMAP) oldbmp_1);
DeleteDC (memdc1_);
SelectObject (Memdc2_, (HBITMAP) oldbmp_2);
DeleteDC (memdc2_);
DeleteDC (HDC);

Iconinfo II = {TRUE, 0, 0, Iconmaskbmp_, iconbmp_};
Icon_ = Createiconindirect (&AMP;II);

}

Dynamicicon::~dynamicicon () {
DestroyIcon (Icon_);
DeleteObject (ICONBMP_);
DeleteObject (ICONMASKBMP_);
}

Hicon Dynamicicon::icon () {
return icon_;
}


LRESULT CALLBACK WndProc (
HWND hwnd,
UINT msg,
WPARAM WPARAM,
LPARAM LPARAM) {

Switch (msg) {
Case WM_PAINT: {
Paintstruct PS;
HDC hdc = BeginPaint (hWnd, &ps);
TextOut (HDC, ten, Ten, "ADP GmbH", 8);
EndPaint (HWnd, &ps);
}
Break

Case Wm_destroy:
PostQuitMessage (0);
Break

Default
Return DefWindowProc (HWnd, MSG, WParam, LParam);
}
return 0;
}


int WINAPI WinMain (hinstance hinstance, HInstance hprevinstance,
LPSTR lpcmdline, int ncmdshow) {


Dynamicicon di;

Wndclassex WCE;

wce.cbsize = sizeof (WCE);
Wce.style = Cs_vredraw | Cs_hredraw;
Wce.lpfnwndproc = (WNDPROC) WNDPROC;
Wce.cbclsextra = 0;
Wce.cbwndextra = 0;
Wce.hinstance = hinstance;
Wce.hicon = <b>di. Icon () </b>;
Wce.hcursor = LoadCursor ((hinstance) NULL, Idc_arrow);
Wce.hbrbackground = (hbrush) getstockobject (White_brush);
Wce.lpszmenuname = 0;
Wce.lpszclassname = "Adpwinclass",
WCE.HICONSM = 0;

if (! RegisterClassEx (&AMP;WCE)) return 0;

HWND hwnd = CREATEWINDOWEX (
0,//Ex Styles
"Adpwinclass",
"ADP GmbH",
Ws_overlappedwindow,
Cw_usedefault,//X
Cw_usedefault,//Y
Cw_usedefault,//Hoehe
Cw_usedefault,//Breite
NULL,//Elternwindow
NULL,//Menu respektive child ID
HINSTANCE,//
NULL//Pointer auf Daten zu diesem Window
);

ShowWindow (HWnd, ncmdshow);

MSG msg;
int R;
while ((R = GetMessage (&msg, NULL, 0, 0))! = 0) {
if (r = =-1) {
; error!
}
else {
TranslateMessage (&AMP;MSG);
DispatchMessage (&AMP;MSG);
}
}

return msg.wparam;
};

A class for dynamic icons in Windows