cef_windows.go

// Copyright (c) 2014 The cef2go authors. All rights reserved.
// License: BSD 3-clause.
// Website: https://github.com/CzarekTomczak/cef2go

package cef2go

/*
#cgo CFLAGS: -I.
#cgo LDFLAGS: -L./Release -llibcef
#include <stdlib.h>
#include "string.h"
#include "include/capi/cef_app_capi.h"
*/
import "C"
import "unsafe"

func FillMainArgs(mainArgs *C.struct__cef_main_args_t,
        appHandle unsafe.Pointer) {
    Logger.Infof("FillMainArgs\n")
    mainArgs.instance = (C.HINSTANCE)(appHandle)
}

func FillWindowInfo(windowInfo *C.cef_window_info_t, hwnd unsafe.Pointer) {
    Logger.Infof("FillWindowInfo\n")
    var rect C.RECT
    C.GetWindowRect((C.HWND)(hwnd),
            (*C.struct_tagRECT)(unsafe.Pointer(&rect)))
    windowInfo.style = C.WS_CHILD | C.WS_CLIPCHILDREN | C.WS_CLIPSIBLINGS |
            C.WS_TABSTOP | C.WS_VISIBLE
    windowInfo.parent_window = (C.HWND)(hwnd)
    windowInfo.x = C.int(rect.left)
    windowInfo.y = C.int(rect.top)
    windowInfo.width = C.int(rect.right - rect.left)
    windowInfo.height = C.int(rect.bottom - rect.top)
}

func WindowResized(hwnd unsafe.Pointer) {
    var rect C.RECT;
    C.GetClientRect((C.HWND)(hwnd),
            (*C.struct_tagRECT)(unsafe.Pointer(&rect)))
    var hdwp C.HDWP = C.BeginDeferWindowPos(1)
    var cefHwnd C.HWND = C.GetWindow((C.HWND)(hwnd), C.GW_CHILD)
    hdwp = C.DeferWindowPos(hdwp, cefHwnd, nil,
            C.int(rect.left), C.int(rect.top),
            C.int(rect.right - rect.left),
            C.int(rect.bottom - rect.top),
            C.SWP_NOZORDER)
    C.EndDeferWindowPos(hdwp)
}