2.2.2.23 RDPGFX_MAP_SURFACE_TO_SCALED_WINDOW_PDU
The RDPGFX_MAP_SURFACE_TO_SCALED_WINDOW_PDU message is sent by the server to instruct the client to map a surface to a RAIL window on the client, including a target width and height to which the surface MUST be scaled.
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header |
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surfaceId |
windowId |
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mappedWidth |
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mappedHeight |
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targetWidth |
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targetHeight |
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header (8 bytes): An RDPGFX_HEADER (section 2.2.1.5) structure. The cmdId field MUST be set to RDPGFX_CMDID_MAPSURFACETOSCALEDWINDOW (0x0018), while the flags field MUST be set to zero.
surfaceId (2 bytes): A 16-bit unsigned integer that specifies the ID of the surface to be associated with the surface-to-window mapping.
windowId (8 bytes): A 64-bit unsigned integer that specifies the ID of the RAIL window to be associated with the surface-to-window mapping. RAIL windows are created via the New or Existing Window order ([MS-RDPERP] section 2.2.1.3.1.2.1). The WindowId field of the Common Header ([MS-RDPERP] section 2.2.1.3.1.1), embedded within the order, contains the window ID.
mappedWidth (4 bytes): A 32-bit unsigned integer that specifies the width of the rectangular region on the surface to which the window is mapped.
mappedHeight (4 bytes): A 32-bit unsigned integer that specifies the height of the rectangular region on the surface to which the window is mapped.
targetWidth (4 bytes): A 32-bit unsigned integer that specifies the width of the target graphics output to which the surface will be mapped.
targetHeight (4 bytes): A 32-bit unsigned integer that specifies the height of the target graphics output to which the surface will be mapped.