diff --git a/tools/winapi/win32.api b/tools/winapi/win32.api
index e79abc3370a..1fd1697ed4b 100644
--- a/tools/winapi/win32.api
+++ b/tools/winapi/win32.api
@@ -933,16 +933,38 @@ HFONT
 HRESULT
 UINT
 
+%float
+
+FLOAT
+
 %ptr
 
+D3DXCOLOR *
+D3DXMATRIX *
+D3DXPLANE *
+D3DXQUATERNION *
+D3DXVECTOR2 *
+D3DXVECTOR3 *
+D3DXVECTOR4 *
+D3DVIEWPORT8 *
+FLOAT *
 LPCVOID
 LPD3DXBUFFER *
 LPD3DXFONT *
+LPD3DXMATRIXSTACK *
 LPDIRECT3DDEVICE8
 
 %str
 
-LPSTR
+LPCSTR
+
+%wstr
+
+LPCWSTR
+
+%void
+
+void
 
 %%d3dxof.dll