IDCompositionDevice2::CreateTransformGroup method (dcomp.h)
Creates a 2D transform group object that holds an array of 2D transform objects.
Syntax
HRESULT CreateTransformGroup(
[in] IDCompositionTransform **transforms,
[in] UINT elements,
[out] IDCompositionTransform **transformGroup
);
Parameters
[in] transforms
Type: IDCompositionTransform**
An array of 2D transform objects that make up this transform group.
[in] elements
Type: UINT
The number of elements in the transforms array.
[out] transformGroup
Type: IDCompositionTransform**
The new transform group object. This parameter must not be NULL.
Return value
Type: HRESULT
If the function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code. See DirectComposition Error Codes for a list of error codes.
Remarks
The array entries in a transform group cannot be changed. However, each transform in the array can be modified through its own property setting methods. If a transform in the array is modified, the change is reflected in the computed matrix of the transform group.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1 [desktop apps only] |
| Minimum supported server | Windows Server 2012 R2 [desktop apps only] |
| Target Platform | Windows |
| Header | dcomp.h |
| Library | Dcomp.lib |
| DLL | Dcomp.dll |