From: Pierre Joye Date: Tue, 17 Apr 2007 15:31:45 +0000 (+0000) Subject: - MFH: add imagegrabwindow and imagegrabscreen (win32 only) [DOC] X-Git-Tag: php-5.2.2RC2~72 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=569e8596afb280b1d72e7ec17eee9498b944b8dd;p=php - MFH: add imagegrabwindow and imagegrabscreen (win32 only) [DOC] capture a window using its handle or a full screen --- diff --git a/ext/gd/config.w32 b/ext/gd/config.w32 index ab8c136036..69861ddce6 100644 --- a/ext/gd/config.w32 +++ b/ext/gd/config.w32 @@ -24,6 +24,9 @@ if (PHP_GD != "no") { CHECK_LIB("zlib.lib", "gd", PHP_GD); } + CHECK_LIB("User32.lib", "gd", PHP_GD); + CHECK_LIB("Gdi32.lib", "gd", PHP_GD); + EXTENSION("gd", "gd.c gdttf.c", null, "-Iext/gd/libgd", "php_gd2.dll"); ADD_SOURCES("ext/gd/libgd", "gd2copypal.c gd_arc_f_buggy.c gd.c \ gdcache.c gdfontg.c gdfontl.c gdfontmb.c gdfonts.c gdfontt.c \ diff --git a/ext/gd/gd.c b/ext/gd/gd.c index 755f825012..b273c57ec4 100644 --- a/ext/gd/gd.c +++ b/ext/gd/gd.c @@ -52,6 +52,9 @@ #ifdef PHP_WIN32 # include # include +#include +#include +#include #endif #if HAVE_LIBGD @@ -314,6 +317,18 @@ ZEND_BEGIN_ARG_INFO(arginfo_imagecopyresampled, 0) ZEND_END_ARG_INFO() #endif +#ifdef PHP_WIN32 +static +ZEND_BEGIN_ARG_INFO(arginfo_imagegrabwindow, 0, 0, 1) + ZEND_ARG_INFO(0, handle) + ZEND_ARG_INFO(0, client_area) +ZEND_END_ARG_INFO() + +static +ZEND_BEGIN_ARG_INFO(arginfo_imagegrabscreen, 0) +ZEND_END_ARG_INFO() +#endif + #ifdef HAVE_GD_BUNDLED static ZEND_BEGIN_ARG_INFO_EX(arginfo_imagerotate, 0, 0, 3) @@ -1020,6 +1035,11 @@ zend_function_entry gd_functions[] = { PHP_FE(imagecopyresampled, arginfo_imagecopyresampled) #endif +#ifdef PHP_WIN32 + PHP_FE(imagegrabwindow, arginfo_imagegrabwindow) + PHP_FE(imagegrabscreen, arginfo_imagegrabscreen) +#endif + #ifdef HAVE_GD_BUNDLED PHP_FE(imagerotate, arginfo_imagerotate) PHP_FE(imageantialias, arginfo_imageantialias) @@ -2069,6 +2089,155 @@ PHP_FUNCTION(imagecopyresampled) /* }}} */ #endif +#ifdef PHP_WIN32 +/* {{{ proto resource imagegrabwindow(int window_handle [, int client_area]) + Grab a window or its client area using a windows handle (HWND property in COM instance) */ +PHP_FUNCTION(imagegrabwindow) +{ + HWND window; + long client_area = 0; + RECT rc = {0}; + RECT rc_win = {0}; + int Width, Height; + HDC hdc; + HDC memDC; + HBITMAP memBM; + HBITMAP hOld; + HINSTANCE handle; + long lwindow_handle; + typedef BOOL (WINAPI *tPrintWindow)(HWND, HDC,UINT); + tPrintWindow pPrintWindow = 0; + gdImagePtr im; + + if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l|l", &lwindow_handle, &client_area) == FAILURE) { + RETURN_FALSE; + } + + window = (HWND) lwindow_handle; + + if (!IsWindow(window)) { + php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Invalid window handle"); + RETURN_FALSE; + } + + hdc = GetDC(0); + + if (client_area) { + GetClientRect(window, &rc); + Width = rc.right; + Height = rc.bottom; + } else { + GetWindowRect(window, &rc); + Width = rc.right - rc.left; + Height = rc.bottom - rc.top; + } + + Width = (Width/4)*4; + + memDC = CreateCompatibleDC(hdc); + memBM = CreateCompatibleBitmap(hdc, Width, Height); + hOld = (HBITMAP) SelectObject (memDC, memBM); + + + handle = LoadLibrary("User32.dll"); + if ( handle == 0 ) { + goto clean; + } + pPrintWindow = (tPrintWindow) GetProcAddress(handle, "PrintWindow"); + + if ( pPrintWindow ) { + pPrintWindow(window, memDC, (UINT) client_area); + } else { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Windows API too old"); + RETURN_FALSE; + goto clean; + } + + FreeLibrary(handle); + + im = gdImageCreateTrueColor(Width, Height); + if (im) { + int x,y; + for (y=0; y <= Height; y++) { + for (x=0; x <= Width; x++) { + int c = GetPixel(memDC, x,y); + gdImageSetPixel(im, x, y, gdTrueColor(GetRValue(c), GetGValue(c), GetBValue(c))); + } + } + } + +clean: + SelectObject(memDC,hOld); + DeleteObject(memBM); + DeleteDC(memDC); + ReleaseDC( 0, hdc ); + + if (!im) { + RETURN_FALSE; + } else { + ZEND_REGISTER_RESOURCE(return_value, im, le_gd); + } +} +/* }}} */ + +/* {{{ proto resource imagegrabscreen(int window_handle [, int client_area]) + Grab a screenshot */ +PHP_FUNCTION(imagegrabscreen) +{ + HWND window = GetDesktopWindow(); + RECT rc = {0}; + int Width, Height; + HDC hdc; + HDC memDC; + HBITMAP memBM; + HBITMAP hOld; + HINSTANCE handle; + long lwindow_handle; + typedef BOOL (WINAPI *tPrintWindow)(HWND, HDC,UINT); + tPrintWindow pPrintWindow = 0; + gdImagePtr im; + hdc = GetDC(0); + + if (!hdc) { + RETURN_FALSE; + } + + GetWindowRect(window, &rc); + Width = rc.right - rc.left; + Height = rc.bottom - rc.top; + + Width = (Width/4)*4; + + memDC = CreateCompatibleDC(hdc); + memBM = CreateCompatibleBitmap(hdc, Width, Height); + hOld = (HBITMAP) SelectObject (memDC, memBM); + BitBlt( memDC, 0, 0, Width, Height , hdc, rc.left, rc.top , SRCCOPY ); + + im = gdImageCreateTrueColor(Width, Height); + if (im) { + int x,y; + for (y=0; y <= Height; y++) { + for (x=0; x <= Width; x++) { + int c = GetPixel(memDC, x,y); + gdImageSetPixel(im, x, y, gdTrueColor(GetRValue(c), GetGValue(c), GetBValue(c))); + } + } + } + + SelectObject(memDC,hOld); + DeleteObject(memBM); + DeleteDC(memDC); + ReleaseDC( 0, hdc ); + + if (!im) { + RETURN_FALSE; + } else { + ZEND_REGISTER_RESOURCE(return_value, im, le_gd); + } +} +/* }}} */ +#endif PHP_WIN32 + #ifdef HAVE_GD_BUNDLED /* {{{ proto resource imagerotate(resource src_im, float angle, int bgdcolor [, int ignoretransparent]) Rotate an image using a custom angle */ diff --git a/ext/gd/php_gd.h b/ext/gd/php_gd.h index 528057a19f..9ced4a44bb 100644 --- a/ext/gd/php_gd.h +++ b/ext/gd/php_gd.h @@ -114,6 +114,11 @@ PHP_FUNCTION(imagecolorexactalpha); PHP_FUNCTION(imagecopyresampled); #endif +#ifdef PHP_WIN32 +PHP_FUNCTION(imagegrabwindow); +PHP_FUNCTION(imagegrabscreen); +#endif + #ifdef HAVE_GD_BUNDLED PHP_FUNCTION(imagerotate); PHP_FUNCTION(imageantialias);