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// Copyright 2010-2012 The W32 Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package w32
import (
"fmt"
"syscall"
"unsafe"
)
// DEFINED IN THE DWM API BUT NOT IMPLEMENTED BY MS:
// DwmAttachMilContent
// DwmDetachMilContent
// DwmEnableComposition
// DwmGetGraphicsStreamClient
// DwmGetGraphicsStreamTransformHint
var (
moddwmapi = syscall.NewLazyDLL("dwmapi.dll")
procDwmDefWindowProc = moddwmapi.NewProc("DwmDefWindowProc")
procDwmEnableBlurBehindWindow = moddwmapi.NewProc("DwmEnableBlurBehindWindow")
procDwmEnableMMCSS = moddwmapi.NewProc("DwmEnableMMCSS")
procDwmExtendFrameIntoClientArea = moddwmapi.NewProc("DwmExtendFrameIntoClientArea")
procDwmFlush = moddwmapi.NewProc("DwmFlush")
procDwmGetColorizationColor = moddwmapi.NewProc("DwmGetColorizationColor")
procDwmGetCompositionTimingInfo = moddwmapi.NewProc("DwmGetCompositionTimingInfo")
procDwmGetTransportAttributes = moddwmapi.NewProc("DwmGetTransportAttributes")
procDwmGetWindowAttribute = moddwmapi.NewProc("DwmGetWindowAttribute")
procDwmInvalidateIconicBitmaps = moddwmapi.NewProc("DwmInvalidateIconicBitmaps")
procDwmIsCompositionEnabled = moddwmapi.NewProc("DwmIsCompositionEnabled")
procDwmModifyPreviousDxFrameDuration = moddwmapi.NewProc("DwmModifyPreviousDxFrameDuration")
procDwmQueryThumbnailSourceSize = moddwmapi.NewProc("DwmQueryThumbnailSourceSize")
procDwmRegisterThumbnail = moddwmapi.NewProc("DwmRegisterThumbnail")
procDwmRenderGesture = moddwmapi.NewProc("DwmRenderGesture")
procDwmSetDxFrameDuration = moddwmapi.NewProc("DwmSetDxFrameDuration")
procDwmSetIconicLivePreviewBitmap = moddwmapi.NewProc("DwmSetIconicLivePreviewBitmap")
procDwmSetIconicThumbnail = moddwmapi.NewProc("DwmSetIconicThumbnail")
procDwmSetPresentParameters = moddwmapi.NewProc("DwmSetPresentParameters")
procDwmSetWindowAttribute = moddwmapi.NewProc("DwmSetWindowAttribute")
procDwmShowContact = moddwmapi.NewProc("DwmShowContact")
procDwmTetherContact = moddwmapi.NewProc("DwmTetherContact")
procDwmTransitionOwnedWindow = moddwmapi.NewProc("DwmTransitionOwnedWindow")
procDwmUnregisterThumbnail = moddwmapi.NewProc("DwmUnregisterThumbnail")
procDwmUpdateThumbnailProperties = moddwmapi.NewProc("DwmUpdateThumbnailProperties")
)
func DwmDefWindowProc(hWnd HWND, msg uint, wParam, lParam uintptr) (bool, uint) {
var result uint
ret, _, _ := procDwmDefWindowProc.Call(
uintptr(hWnd),
uintptr(msg),
wParam,
lParam,
uintptr(unsafe.Pointer(&result)))
return ret != 0, result
}
func DwmEnableBlurBehindWindow(hWnd HWND, pBlurBehind *DWM_BLURBEHIND) HRESULT {
ret, _, _ := procDwmEnableBlurBehindWindow.Call(
uintptr(hWnd),
uintptr(unsafe.Pointer(pBlurBehind)))
return HRESULT(ret)
}
func DwmEnableMMCSS(fEnableMMCSS bool) HRESULT {
ret, _, _ := procDwmEnableMMCSS.Call(
uintptr(BoolToBOOL(fEnableMMCSS)))
return HRESULT(ret)
}
func DwmExtendFrameIntoClientArea(hWnd HWND, pMarInset *MARGINS) HRESULT {
ret, _, _ := procDwmExtendFrameIntoClientArea.Call(
uintptr(hWnd),
uintptr(unsafe.Pointer(pMarInset)))
return HRESULT(ret)
}
func DwmFlush() HRESULT {
ret, _, _ := procDwmFlush.Call()
return HRESULT(ret)
}
func DwmGetColorizationColor(pcrColorization *uint32, pfOpaqueBlend *BOOL) HRESULT {
ret, _, _ := procDwmGetColorizationColor.Call(
uintptr(unsafe.Pointer(pcrColorization)),
uintptr(unsafe.Pointer(pfOpaqueBlend)))
return HRESULT(ret)
}
func DwmGetCompositionTimingInfo(hWnd HWND, pTimingInfo *DWM_TIMING_INFO) HRESULT {
ret, _, _ := procDwmGetCompositionTimingInfo.Call(
uintptr(hWnd),
uintptr(unsafe.Pointer(pTimingInfo)))
return HRESULT(ret)
}
func DwmGetTransportAttributes(pfIsRemoting *BOOL, pfIsConnected *BOOL, pDwGeneration *uint32) HRESULT {
ret, _, _ := procDwmGetTransportAttributes.Call(
uintptr(unsafe.Pointer(pfIsRemoting)),
uintptr(unsafe.Pointer(pfIsConnected)),
uintptr(unsafe.Pointer(pDwGeneration)))
return HRESULT(ret)
}
// TODO: verify handling of variable arguments
func DwmGetWindowAttribute(hWnd HWND, dwAttribute uint32) (pAttribute interface{}, result HRESULT) {
var pvAttribute, pvAttrSize uintptr
switch dwAttribute {
case DWMWA_NCRENDERING_ENABLED:
v := new(BOOL)
pAttribute = v
pvAttribute = uintptr(unsafe.Pointer(v))
pvAttrSize = unsafe.Sizeof(*v)
case DWMWA_CAPTION_BUTTON_BOUNDS, DWMWA_EXTENDED_FRAME_BOUNDS:
v := new(RECT)
pAttribute = v
pvAttribute = uintptr(unsafe.Pointer(v))
pvAttrSize = unsafe.Sizeof(*v)
case DWMWA_CLOAKED:
panic(fmt.Sprintf("DwmGetWindowAttribute(%d) is not currently supported.", dwAttribute))
default:
panic(fmt.Sprintf("DwmGetWindowAttribute(%d) is not valid.", dwAttribute))
}
ret, _, _ := procDwmGetWindowAttribute.Call(
uintptr(hWnd),
uintptr(dwAttribute),
pvAttribute,
pvAttrSize)
result = HRESULT(ret)
return
}
func DwmInvalidateIconicBitmaps(hWnd HWND) HRESULT {
ret, _, _ := procDwmInvalidateIconicBitmaps.Call(
uintptr(hWnd))
return HRESULT(ret)
}
func DwmIsCompositionEnabled(pfEnabled *BOOL) HRESULT {
ret, _, _ := procDwmIsCompositionEnabled.Call(
uintptr(unsafe.Pointer(pfEnabled)))
return HRESULT(ret)
}
func DwmModifyPreviousDxFrameDuration(hWnd HWND, cRefreshes int, fRelative bool) HRESULT {
ret, _, _ := procDwmModifyPreviousDxFrameDuration.Call(
uintptr(hWnd),
uintptr(cRefreshes),
uintptr(BoolToBOOL(fRelative)))
return HRESULT(ret)
}
func DwmQueryThumbnailSourceSize(hThumbnail HTHUMBNAIL, pSize *SIZE) HRESULT {
ret, _, _ := procDwmQueryThumbnailSourceSize.Call(
uintptr(hThumbnail),
uintptr(unsafe.Pointer(pSize)))
return HRESULT(ret)
}
func DwmRegisterThumbnail(hWndDestination HWND, hWndSource HWND, phThumbnailId *HTHUMBNAIL) HRESULT {
ret, _, _ := procDwmRegisterThumbnail.Call(
uintptr(hWndDestination),
uintptr(hWndSource),
uintptr(unsafe.Pointer(phThumbnailId)))
return HRESULT(ret)
}
func DwmRenderGesture(gt GESTURE_TYPE, cContacts uint, pdwPointerID *uint32, pPoints *POINT) {
procDwmRenderGesture.Call(
uintptr(gt),
uintptr(cContacts),
uintptr(unsafe.Pointer(pdwPointerID)),
uintptr(unsafe.Pointer(pPoints)))
return
}
func DwmSetDxFrameDuration(hWnd HWND, cRefreshes int) HRESULT {
ret, _, _ := procDwmSetDxFrameDuration.Call(
uintptr(hWnd),
uintptr(cRefreshes))
return HRESULT(ret)
}
func DwmSetIconicLivePreviewBitmap(hWnd HWND, hbmp HBITMAP, pptClient *POINT, dwSITFlags uint32) HRESULT {
ret, _, _ := procDwmSetIconicLivePreviewBitmap.Call(
uintptr(hWnd),
uintptr(hbmp),
uintptr(unsafe.Pointer(pptClient)),
uintptr(dwSITFlags))
return HRESULT(ret)
}
func DwmSetIconicThumbnail(hWnd HWND, hbmp HBITMAP, dwSITFlags uint32) HRESULT {
ret, _, _ := procDwmSetIconicThumbnail.Call(
uintptr(hWnd),
uintptr(hbmp),
uintptr(dwSITFlags))
return HRESULT(ret)
}
func DwmSetPresentParameters(hWnd HWND, pPresentParams *DWM_PRESENT_PARAMETERS) HRESULT {
ret, _, _ := procDwmSetPresentParameters.Call(
uintptr(hWnd),
uintptr(unsafe.Pointer(pPresentParams)))
return HRESULT(ret)
}
func DwmSetWindowAttribute(hWnd HWND, dwAttribute uint32, pvAttribute LPCVOID, cbAttribute uint32) HRESULT {
ret, _, _ := procDwmSetWindowAttribute.Call(
uintptr(hWnd),
uintptr(dwAttribute),
uintptr(pvAttribute),
uintptr(cbAttribute))
return HRESULT(ret)
}
func DwmShowContact(dwPointerID uint32, eShowContact DWM_SHOWCONTACT) {
procDwmShowContact.Call(
uintptr(dwPointerID),
uintptr(eShowContact))
return
}
func DwmTetherContact(dwPointerID uint32, fEnable bool, ptTether POINT) {
procDwmTetherContact.Call(
uintptr(dwPointerID),
uintptr(BoolToBOOL(fEnable)),
uintptr(unsafe.Pointer(&ptTether)))
return
}
func DwmTransitionOwnedWindow(hWnd HWND, target DWMTRANSITION_OWNEDWINDOW_TARGET) {
procDwmTransitionOwnedWindow.Call(
uintptr(hWnd),
uintptr(target))
return
}
func DwmUnregisterThumbnail(hThumbnailId HTHUMBNAIL) HRESULT {
ret, _, _ := procDwmUnregisterThumbnail.Call(
uintptr(hThumbnailId))
return HRESULT(ret)
}
func DwmUpdateThumbnailProperties(hThumbnailId HTHUMBNAIL, ptnProperties *DWM_THUMBNAIL_PROPERTIES) HRESULT {
ret, _, _ := procDwmUpdateThumbnailProperties.Call(
uintptr(hThumbnailId),
uintptr(unsafe.Pointer(ptnProperties)))
return HRESULT(ret)
}
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