diff --git a/dlls/gdiplus/matrix.c b/dlls/gdiplus/matrix.c
index 008dcae33cd..d2e15116d6c 100644
--- a/dlls/gdiplus/matrix.c
+++ b/dlls/gdiplus/matrix.c
@@ -61,6 +61,8 @@ static REAL matrix_det(GDIPCONST GpMatrix *matrix)
 GpStatus WINGDIPAPI GdipCreateMatrix2(REAL m11, REAL m12, REAL m21, REAL m22,
     REAL dx, REAL dy, GpMatrix **matrix)
 {
+    TRACE("(%.2f, %.2f, %.2f, %.2f, %.2f, %.2f, %p)\n", m11, m12, m21, m22, dx, dy, matrix);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -83,6 +85,8 @@ GpStatus WINGDIPAPI GdipCreateMatrix2(REAL m11, REAL m12, REAL m21, REAL m22,
 GpStatus WINGDIPAPI GdipCreateMatrix3(GDIPCONST GpRectF *rect,
     GDIPCONST GpPointF *pt, GpMatrix **matrix)
 {
+    TRACE("(%p, %p, %p)\n", rect, pt, matrix);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -103,6 +107,8 @@ GpStatus WINGDIPAPI GdipCreateMatrix3I(GDIPCONST GpRect *rect, GDIPCONST GpPoint
     GpRectF rectF;
     GpPointF ptF;
 
+    TRACE("(%p, %p, %p)\n", rect, pt, matrix);
+
     rectF.X = (REAL)rect->X;
     rectF.Y = (REAL)rect->Y;
     rectF.Width = (REAL)rect->Width;
@@ -116,6 +122,8 @@ GpStatus WINGDIPAPI GdipCreateMatrix3I(GDIPCONST GpRect *rect, GDIPCONST GpPoint
 
 GpStatus WINGDIPAPI GdipCloneMatrix(GpMatrix *matrix, GpMatrix **clone)
 {
+    TRACE("(%p, %p)\n", matrix, clone);
+
     if(!matrix || !clone)
         return InvalidParameter;
 
@@ -129,6 +137,8 @@ GpStatus WINGDIPAPI GdipCloneMatrix(GpMatrix *matrix, GpMatrix **clone)
 
 GpStatus WINGDIPAPI GdipCreateMatrix(GpMatrix **matrix)
 {
+    TRACE("(%p)\n", matrix);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -147,6 +157,8 @@ GpStatus WINGDIPAPI GdipCreateMatrix(GpMatrix **matrix)
 
 GpStatus WINGDIPAPI GdipDeleteMatrix(GpMatrix *matrix)
 {
+    TRACE("(%p)\n", matrix);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -158,6 +170,8 @@ GpStatus WINGDIPAPI GdipDeleteMatrix(GpMatrix *matrix)
 GpStatus WINGDIPAPI GdipGetMatrixElements(GDIPCONST GpMatrix *matrix,
     REAL *out)
 {
+    TRACE("(%p, %p)\n", matrix, out);
+
     if(!matrix || !out)
         return InvalidParameter;
 
@@ -172,6 +186,8 @@ GpStatus WINGDIPAPI GdipInvertMatrix(GpMatrix *matrix)
     REAL det;
     BOOL invertible;
 
+    TRACE("(%p)\n", matrix);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -195,6 +211,8 @@ GpStatus WINGDIPAPI GdipInvertMatrix(GpMatrix *matrix)
 
 GpStatus WINGDIPAPI GdipIsMatrixInvertible(GDIPCONST GpMatrix *matrix, BOOL *result)
 {
+    TRACE("(%p, %p)\n", matrix, result);
+
     if(!matrix || !result)
         return InvalidParameter;
 
@@ -206,6 +224,8 @@ GpStatus WINGDIPAPI GdipIsMatrixInvertible(GDIPCONST GpMatrix *matrix, BOOL *res
 GpStatus WINGDIPAPI GdipMultiplyMatrix(GpMatrix *matrix, GpMatrix* matrix2,
     GpMatrixOrder order)
 {
+    TRACE("(%p, %p, %d)\n", matrix, matrix2, order);
+
     if(!matrix || !matrix2)
         return InvalidParameter;
 
@@ -222,6 +242,8 @@ GpStatus WINGDIPAPI GdipRotateMatrix(GpMatrix *matrix, REAL angle,
 {
     REAL cos_theta, sin_theta, rotate[6];
 
+    TRACE("(%p, %.2f, %d)\n", matrix, angle, order);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -249,6 +271,8 @@ GpStatus WINGDIPAPI GdipScaleMatrix(GpMatrix *matrix, REAL scaleX, REAL scaleY,
 {
     REAL scale[6];
 
+    TRACE("(%p, %.2f, %.2f, %d)\n", matrix, scaleX, scaleY, order);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -270,6 +294,9 @@ GpStatus WINGDIPAPI GdipScaleMatrix(GpMatrix *matrix, REAL scaleX, REAL scaleY,
 GpStatus WINGDIPAPI GdipSetMatrixElements(GpMatrix *matrix, REAL m11, REAL m12,
     REAL m21, REAL m22, REAL dx, REAL dy)
 {
+    TRACE("(%p, %.2f, %.2f, %.2f, %.2f, %.2f, %.2f)\n", matrix, m11, m12,
+            m21, m22, dx, dy);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -288,6 +315,8 @@ GpStatus WINGDIPAPI GdipShearMatrix(GpMatrix *matrix, REAL shearX, REAL shearY,
 {
     REAL shear[6];
 
+    TRACE("(%p, %.2f, %.2f, %d)\n", matrix, shearX, shearY, order);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -313,6 +342,8 @@ GpStatus WINGDIPAPI GdipTransformMatrixPoints(GpMatrix *matrix, GpPointF *pts,
     REAL x, y;
     INT i;
 
+    TRACE("(%p, %p, %d)\n", matrix, pts, count);
+
     if(!matrix || !pts || count <= 0)
         return InvalidParameter;
 
@@ -334,6 +365,8 @@ GpStatus WINGDIPAPI GdipTransformMatrixPointsI(GpMatrix *matrix, GpPoint *pts, I
     GpStatus ret;
     INT i;
 
+    TRACE("(%p, %p, %d)\n", matrix, pts, count);
+
     if(count <= 0)
         return InvalidParameter;
 
@@ -363,6 +396,8 @@ GpStatus WINGDIPAPI GdipTranslateMatrix(GpMatrix *matrix, REAL offsetX,
 {
     REAL translate[6];
 
+    TRACE("(%p, %.2f, %.2f, %d)\n", matrix, offsetX, offsetY, order);
+
     if(!matrix)
         return InvalidParameter;
 
@@ -386,6 +421,8 @@ GpStatus WINGDIPAPI GdipVectorTransformMatrixPoints(GpMatrix *matrix, GpPointF *
     REAL x, y;
     INT i;
 
+    TRACE("(%p, %p, %d)\n", matrix, pts, count);
+
     if(!matrix || !pts || count <= 0)
         return InvalidParameter;
 
@@ -407,6 +444,8 @@ GpStatus WINGDIPAPI GdipVectorTransformMatrixPointsI(GpMatrix *matrix, GpPoint *
     GpStatus ret;
     INT i;
 
+    TRACE("(%p, %p, %d)\n", matrix, pts, count);
+
     if(count <= 0)
         return InvalidParameter;
 
@@ -434,6 +473,8 @@ GpStatus WINGDIPAPI GdipVectorTransformMatrixPointsI(GpMatrix *matrix, GpPoint *
 GpStatus WINGDIPAPI GdipIsMatrixEqual(GDIPCONST GpMatrix *matrix, GDIPCONST GpMatrix *matrix2,
     BOOL *result)
 {
+    TRACE("(%p, %p, %p)\n", matrix, matrix2, result);
+
     if(!matrix || !matrix2 || !result)
         return InvalidParameter;
     /* based on single array member of GpMatrix */
@@ -448,6 +489,8 @@ GpStatus WINGDIPAPI GdipIsMatrixIdentity(GDIPCONST GpMatrix *matrix, BOOL *resul
     GpStatus ret;
     BOOL isIdentity;
 
+    TRACE("(%p, %p)\n", matrix, result);
+
     if(!matrix || !result)
         return InvalidParameter;